{"title":"Chevy \/ GMC","description":"\u003cp\u003eChevy \u0026amp; GMC Duramax diesel performance — Silverado HD, Sierra HD.\u003c\/p\u003e","products":[{"product_id":"2017-2019-l5p-diy-kit","title":"2017-2023 L5P DIY KIT","description":"\u003ch1 data-end=\"180\" data-start=\"151\"\u003e\u003cstrong data-end=\"180\" data-start=\"153\"\u003eFITS: L5P \u0026amp; L5D Duramax\u003c\/strong\u003e\u003c\/h1\u003e\n\u003cp\u003e\u003cstrong data-end=\"180\" data-start=\"153\"\u003eplease note: An automated email will be sent out immediately after purchase, all tuning requests \/ vehicle details \/ info is collected via email\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr data-end=\"185\" data-start=\"182\"\u003e\n\u003ch2 data-end=\"209\" data-start=\"187\"\u003e\u003cstrong data-end=\"209\" data-start=\"190\"\u003eWHAT’S INCLUDED\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul data-end=\"621\" data-start=\"211\"\u003e\n\u003cli data-end=\"341\" data-start=\"211\"\u003e\n\u003cp data-end=\"238\" data-start=\"213\"\u003eMPVI4 or EZLYNK 3.0\u003c\/p\u003e\n\u003cul data-end=\"341\" data-start=\"241\"\u003e\n\u003cli data-end=\"289\" data-start=\"241\"\u003e\n\u003cp data-end=\"289\" data-start=\"243\"\u003e\u003cem data-end=\"287\" data-start=\"243\"\u003e2017–2018 L5P → HP Tuners MPVI recommended\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"341\" data-start=\"292\"\u003e\n\u003cp data-end=\"341\" data-start=\"294\"\u003e\u003cem data-end=\"339\" data-start=\"294\"\u003e2019+ L5P\/L5D → EZLYNK strongly recommended\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"461\" data-start=\"343\"\u003e\n\u003cp data-end=\"461\" data-start=\"345\"\u003e\u003cspan\u003e\u003cstrong\u003eE41 HP Tuners Unlock Cable\u003c\/strong\u003e\u003c\/span\u003e\u003cbr data-end=\"378\" data-start=\"375\"\u003e\u003cspan\u003e\u003cstrong\u003e\u003cem data-end=\"459\" data-start=\"380\"\u003e(Not required if optioning EZLYNK — EZLYNK performs the unlock automatically) ONLY NEEDED FOR 17-18L5P USING HP TUNERS\u003c\/em\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003cem data-end=\"459\" data-start=\"380\"\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"486\" data-start=\"463\"\u003e\n\u003cp data-end=\"486\" data-start=\"465\"\u003e3.5” L5P Downpipe (HEAT WRAP INCLUDED) 409 Stainless\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"527\" data-start=\"488\"\u003e\n\u003cp data-end=\"527\" data-start=\"490\"\u003e4” Race Pipe or 4\"\/5” Full Exhaust System 409 Stainless\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"585\" data-start=\"529\"\u003e\n\u003cp data-end=\"585\" data-start=\"531\"\u003e0–220 HP Custom Engine Files (SOTF or Single Tune)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"600\" data-start=\"587\"\u003e\n\u003cp data-end=\"600\" data-start=\"589\"\u003eEGR SOLUTION\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"600\" data-start=\"587\"\u003eCOOLANT REROUTE\u003c\/li\u003e\n\u003cli data-end=\"600\" data-start=\"587\"\u003eGASKET KIT\u003c\/li\u003e\n\u003cli data-end=\"600\" data-start=\"587\"\u003e\n\u003cp data-end=\"600\" data-start=\"589\"\u003e\u003cspan\u003eCAN Bus Plugs\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong data-end=\"621\" data-start=\"604\"\u003eIF YOU HAVE YOUR OWN DEVICE AT HOME YOU WILL NEED TO MAKE SURE ITS EITHER A MPVI 2\/3\/4 or AUTO AGENT EZLYNK 3.0 OR 2.0\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr data-end=\"626\" data-start=\"623\"\u003e\n\u003ch2 data-end=\"670\" data-start=\"628\"\u003e⭐\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-end=\"668\" data-start=\"633\"\u003eFREE RETUNES + LIFETIME SUPPORT\u003c\/strong\u003e\n\u003c\/h2\u003e\n\u003cp data-end=\"716\" data-start=\"671\"\u003eIncluded with this package — no extra charge.\u003c\/p\u003e\n\u003chr data-end=\"721\" data-start=\"718\"\u003e\n\u003ch2 data-end=\"744\" data-start=\"723\"\u003e\u003cstrong data-end=\"744\" data-start=\"726\"\u003eIMPORTANT INFO\u003c\/strong\u003e\u003c\/h2\u003e\n\u003ch3 data-end=\"789\" data-start=\"746\"\u003e\u003cstrong data-end=\"789\" data-start=\"750\"\u003eTransmission Tuning Sold Separately\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ch3 data-end=\"821\" data-start=\"791\"\u003e\u003cstrong data-end=\"819\" data-start=\"795\"\u003eNO ECM Swap Required\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-end=\"882\" data-start=\"822\"\u003eFlash everything\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-end=\"854\" data-start=\"839\"\u003eDIY at home\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ewith either MPVI or EZLYNK.\u003c\/p\u003e\n\u003chr data-end=\"887\" data-start=\"884\"\u003e\n\u003ch2 data-end=\"934\" data-start=\"889\"\u003e\u003cstrong data-end=\"934\" data-start=\"892\"\u003eHP Tuners (MPVI3 \/ MPVI4) Requirements\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul data-end=\"1155\" data-start=\"936\"\u003e\n\u003cli data-end=\"1008\" data-start=\"936\"\u003e\n\u003cp data-end=\"1008\" data-start=\"938\"\u003eRequires an\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-end=\"970\" data-start=\"950\"\u003eE41 Unlock Cable\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eif your ECM is not already unlocked 17-18 ONLY\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1063\" data-start=\"1009\"\u003e\n\u003cp data-end=\"1063\" data-start=\"1011\"\u003eRequires\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-end=\"1043\" data-start=\"1020\"\u003e8 Universal Credits\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eto flash your ECM\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1155\" data-start=\"1064\"\u003e\n\u003cp data-end=\"1155\" data-start=\"1066\"\u003eCredits must be purchased\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-end=\"1122\" data-start=\"1092\"\u003edirectly through HP Tuners\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eafter connecting to your vehicle\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-end=\"1160\" data-start=\"1157\"\u003e\n\u003ch2 data-end=\"1192\" data-start=\"1162\"\u003e\u003cstrong data-end=\"1192\" data-start=\"1165\"\u003eEZLYNK 3.0 Requirements\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul data-end=\"1329\" data-start=\"1194\"\u003e\n\u003cli data-end=\"1228\" data-start=\"1194\"\u003e\n\u003cp data-end=\"1228\" data-start=\"1196\"\u003e\u003cstrong data-end=\"1226\" data-start=\"1196\"\u003eNO E41 unlock cable needed\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1286\" data-start=\"1229\"\u003e\n\u003cp data-end=\"1286\" data-start=\"1231\"\u003eEZLYNK handles\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-end=\"1284\" data-start=\"1246\"\u003eunlocking + flashing automatically\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1329\" data-start=\"1287\"\u003e\n\u003cp data-end=\"1329\" data-start=\"1289\"\u003eEasiest, fastest method for 2019+ trucks\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-end=\"1334\" data-start=\"1331\"\u003e\n\u003ch2 data-end=\"142\" data-start=\"98\"\u003e\u003cstrong data-end=\"142\" data-start=\"101\"\u003eTRANSMISSION TUNING (SOLD SEPARATELY)\u003c\/strong\u003e\u003c\/h2\u003e\n\u003ch3 data-end=\"199\" data-start=\"144\"\u003e\u003cstrong data-end=\"197\" data-start=\"148\"\u003eT87A Transmission Control Modules (2017–2019)\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-end=\"271\" data-start=\"200\"\u003e\u003cstrong data-end=\"232\" data-start=\"200\"\u003eNo need to send in your TCM.\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eBoth platforms can unlock it remotely:\u003c\/p\u003e\n\u003cul data-end=\"515\" data-start=\"273\"\u003e\n\u003cli data-end=\"426\" data-start=\"273\"\u003e\n\u003cp data-end=\"291\" data-start=\"275\"\u003e\u003cstrong data-end=\"289\" data-start=\"275\"\u003eHP Tuners:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-end=\"426\" data-start=\"294\"\u003e\n\u003cli data-end=\"371\" data-start=\"294\"\u003e\n\u003cp data-end=\"371\" data-start=\"296\"\u003eCan unlock the\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-end=\"333\" data-start=\"311\"\u003e2017–2019 T87A TCM\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eusing their\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-end=\"369\" data-start=\"346\"\u003elatest beta version\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"426\" data-start=\"374\"\u003e\n\u003cp data-end=\"426\" data-start=\"376\"\u003e\u003cstrong data-end=\"396\" data-start=\"376\"\u003eCredits required\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(purchased through HP Tuners)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"515\" data-start=\"428\"\u003e\n\u003cp data-end=\"443\" data-start=\"430\"\u003e\u003cstrong data-end=\"441\" data-start=\"430\"\u003eEZLYNK:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-end=\"515\" data-start=\"446\"\u003e\n\u003cli data-end=\"487\" data-start=\"446\"\u003e\n\u003cp data-end=\"487\" data-start=\"448\"\u003eCan also unlock\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-end=\"476\" data-start=\"464\"\u003eT87A TCM\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eremotely\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"515\" data-start=\"490\"\u003e\n\u003cp data-end=\"515\" data-start=\"492\"\u003e\u003cstrong data-end=\"515\" data-start=\"492\"\u003eNo credits required\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-end=\"520\" data-start=\"517\"\u003e\n\u003ch3 data-end=\"576\" data-start=\"522\"\u003e\u003cstrong data-end=\"574\" data-start=\"526\"\u003eT93 Transmission Control Modules (2020–2023)\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-end=\"615\" data-start=\"577\"\u003eThese\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-end=\"593\" data-start=\"583\"\u003ecannot\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ebe unlocked remotely.\u003c\/p\u003e\n\u003cp data-end=\"739\" data-start=\"617\"\u003eYou must either:\u003cbr data-end=\"636\" data-start=\"633\"\u003e1️⃣\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-end=\"660\" data-start=\"640\"\u003eSend in your TCM\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eto be unlocked,\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-end=\"683\" data-start=\"677\"\u003eOR\u003c\/strong\u003e\u003cbr data-end=\"686\" data-start=\"683\"\u003e2️⃣\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-end=\"722\" data-start=\"690\"\u003ePurchase an unlocked T93 TCM\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eand install it\u003c\/p\u003e\n\u003cp data-end=\"829\" data-start=\"741\"\u003eOnce the unlocked T93 is installed successfully in your vehicle, it can be tuned with:\u003c\/p\u003e\n\u003cul data-end=\"882\" data-start=\"830\"\u003e\n\u003cli data-end=\"852\" data-start=\"830\"\u003e\n\u003cp data-end=\"852\" data-start=\"832\"\u003e\u003cstrong data-end=\"846\" data-start=\"832\"\u003eEZLYNK 3.0\u003c\/strong\u003e, or\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"882\" data-start=\"853\"\u003e\n\u003cp data-end=\"882\" data-start=\"855\"\u003e\u003cstrong data-end=\"882\" data-start=\"855\"\u003eHP Tuners (MPVI3\/MPVI4)\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"H2 Supply CO","offers":[{"title":"Default Title","offer_id":48232184840446,"sku":null,"price":2500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0809\/8008\/2942\/files\/Screenshot2026-05-20150014.png?v=1779307247"},{"product_id":"17-26-l5p-ccv-reroute","title":"17-26 L5P CCV REROUTE","description":"\u003cp\u003eUpgrade your factory crankcase ventilation system with this high-performance L5P CCV Upgrade Kit, designed to solve common failure issues and improve engine reliability for your 2017–2026 Duramax.\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhat Is the CCV System?\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe CCV (Crankcase Ventilation) system is responsible for extracting combustion gases that escape past the piston rings and collect in the crankcase. On the L5P Duramax, the CCV system is integrated into the valve cover and connects to the intake air horn. This setup uses Bernoulli’s Principle to create vacuum and route crankcase gases back through the intake for reburning — a requirement for emissions compliance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eOver time, especially in higher-mileage diesels, excessive blow-by causes oil vapors to be carried into the turbocharger inlet. The engine consumes this oil, which can lead to carbon buildup and reduced efficiency.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhy Upgrade?\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe factory CCV system on the L5P is made of plastic and is known to crack or fail over time, allowing boost pressure and hot charge air to enter the intake system improperly. Additionally, the OEM system is non-serviceable — if it fails, the entire driver-side valve cover must be removed, requiring fuel line and injector removal, often totaling 6+ hours of labor.\u003c\/span\u003e\u003c\/p\u003e","brand":"H2 Supply CO","offers":[{"title":"Default Title","offer_id":48236298273022,"sku":null,"price":250.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0809\/8008\/2942\/files\/L5PCCVREROUTE.webp?v=1779380217"},{"product_id":"l5p-17-25-billet-throttle-valve-upgrade","title":"L5P 17-25 BILLET THROTTLE VALVE UPGRADE","description":"\u003ch3\u003eBillet Throttle Valve Upgrade (Race Use Only)\u003c\/h3\u003e\n\u003cp\u003eThe factory connection where the throttle valve meets the “Y” bridge is a known weak point, often causing boost leaks due to the flawed plastic ring design. Our solution replaces that failure-prone area with a \u003cstrong\u003eone-piece, high-temperature O-ring\u003c\/strong\u003e seated in a precision-machined groove—creating a \u003cstrong\u003etight, leak-free seal\u003c\/strong\u003e that holds strong under high boost conditions.\u003c\/p\u003e\n\u003cp\u003eTo ensure maximum reliability, the throttle valve connection features a \u003cstrong\u003ebarbed end\u003c\/strong\u003e designed specifically to grip your aftermarket cold-side intercooler boot. This prevents slippage, even during extreme heat and pressure situations.\u003c\/p\u003e\n\u003cp\u003eBy eliminating the factory throttle blade, we also remove the risk of the internal fastener screws backing out and entering the engine—a potential catastrophe in high-performance builds.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eKey Features:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThrottle Blade Solution\u003c\/strong\u003e – For race applications only, removes a common failure point\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThree 1\/8” NPT Ports\u003c\/strong\u003e – Easily connect sensors, boost taps, or other fittings\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMachined Barbed Outlet\u003c\/strong\u003e – Creates a secure, high-flow connection to your intercooler piping\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision-machined aluminum construction\u003c\/strong\u003e – Lightweight, heat-resistant, and durable\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncludes all hardware for easy installation\u003c\/strong\u003e – No special tools required\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"773\" data-end=\"959\"\u003eBy eliminating the factory throttle valve, the air path is completely unobstructed — enabling maximum airflow for high-performance engines.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eKey Features:\u003c\/h3\u003e\n\u003cul data-start=\"985\" data-end=\"1212\" class=\"\"\u003e\n\u003cli data-start=\"987\" data-end=\"1045\" class=\"\"\u003e\u003cp data-start=\"989\" data-end=\"1026\" class=\"\"\u003e\u003cstrong data-start=\"989\" data-end=\"1026\"\u003eThrottle Blade Solution\u003c\/strong\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli data-start=\"1047\" data-end=\"1111\" class=\"\"\u003e\u003cp data-start=\"1049\" data-end=\"1111\" class=\"\"\u003e\u003cstrong data-start=\"1049\" data-end=\"1082\"\u003eThree 1\/8” NPT ports\u003c\/strong\u003e for sensors or boost taps\u003c\/p\u003e\u003c\/li\u003e\n\u003cli data-start=\"1113\" data-end=\"1177\" class=\"\"\u003e\u003cp data-start=\"1115\" data-end=\"1177\" class=\"\"\u003e\u003cstrong data-start=\"1115\" data-end=\"1133\"\u003eBarbed Outlet\u003c\/strong\u003e for secure intercooler boot connection\u003c\/p\u003e\u003c\/li\u003e\n\u003cli data-start=\"1179\" data-end=\"1212\" class=\"\"\u003e\u003cp data-start=\"1181\" data-end=\"1212\" class=\"\"\u003eNo special tools required\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"H2 Supply Co","offers":[{"title":"Default Title","offer_id":48264714846462,"sku":null,"price":175.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0809\/8008\/2942\/files\/download.jpg?v=1779826357"},{"product_id":"lml-11-16-billet-throttle-valve-upgrade","title":"LML 11-16 BILLET THROTTLE VALVE UPGRADE","description":"\u003cp\u003eBillet aluminum grid heater \/ throttle valve solution for the 11-16 6.6L LML Duramax.  \u003c\/p\u003e\n\u003cp\u003eFits stock style cold pipe. \u003cbr\u003e\u003cbr\u003eIncludes all hardware required for installation and utilizes a o-ring seal.\u003cbr\u003e\u003cbr\u003e*Competition and off-road use only- may require tuning to avoid a check engine light. \u003cbr\u003e\u003c\/p\u003e","brand":"H2 Supply Co","offers":[{"title":"Default Title","offer_id":48264714879230,"sku":null,"price":165.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0809\/8008\/2942\/files\/download_70acfbf5-2d81-47ad-8079-2c5dcedb21eb.jpg?v=1779826358"},{"product_id":"2001-2004-lb7-6-6l-dsp5-sotf","title":"2001-2004 LB7 6.6L DSP5 SOTF","description":"","brand":"H2 Supply Co","offers":[{"title":"Default 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Improves exhaust flow.\u003c\/p\u003e","brand":"H2 Supply CO","offers":[{"title":"Default Title","offer_id":48264801419518,"sku":null,"price":405.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0809\/8008\/2942\/files\/579A5350_700x700_451a7bc2-88e5-42c4-909e-132c605e7c5a.webp?v=1779835821"},{"product_id":"2020-2022-gm-3-0l-duramax-304-stainless-steel-dpf-back-performance-exhaust-kit-dual-exit-lm2","title":"2020–2022 GM 3.0L Duramax 304 Stainless Steel DPF-Back Performance Exhaust Kit - Dual Exit LM2","description":"\u003cp\u003e304 Stainless Steel DPF-Back Performance Exhaust Kit - Dual Exit for the 2020-2022 GM 3.0L Duramax LM2.\u003c\/p\u003e","brand":"H2 Supply CO","offers":[{"title":"Default Title","offer_id":48264802009342,"sku":null,"price":1161.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0809\/8008\/2942\/files\/117063030_2500x_075ddb46-f915-4aef-9601-422402e3c422.webp?v=1779835932"},{"product_id":"2019-2022-gm-duramax-lm2-3-0l-ez-lynk-e46-tune-files","title":"2019-2022 GM Duramax LM2 3.0L EZ Lynk E46 Tune Files","description":"\u003cp\u003eEZ Lynk E46 Tune Files for the 2019-2022 GM Duramax LM2 3.0L. Performance tuning via EZ Lynk platform.\u003c\/p\u003e","brand":"H2 Supply CO","offers":[{"title":"Default Title","offer_id":48264802074878,"sku":null,"price":801.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0809\/8008\/2942\/files\/Screenshot2026-05-20143501_75467809-878f-4f3c-bc47-f50e7cebaab4.png?v=1779835952"},{"product_id":"2019-2022-lm2-3-0l-e46-carepackage-diy-kit","title":"2019-2022 LM2 3.0L E46 CAREPACKAGE (DIY KIT)","description":"\u003cp\u003eE46 CAREPACKAGE DIY Kit for the 2019-2022 LM2 3.0L Duramax. Complete performance modification kit.\u003c\/p\u003e","brand":"H2 Supply CO","offers":[{"title":"Default Title","offer_id":48264802107646,"sku":null,"price":2151.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0809\/8008\/2942\/files\/LM2CAREPACKAGE.jpg?v=1779835968"},{"product_id":"2020-6-7l-powerstroke-2017-l5p-duramax-gdp-commander","title":"2020+ 6.7L Powerstroke\/2017+ L5P Duramax GDP Commander","description":"\u003cp\u003eGDP Commander for 2020+ 6.7L Powerstroke and 2017+ L5P Duramax. Advanced engine management device.\u003c\/p\u003e","brand":"H2 Supply CO","offers":[{"title":"Default Title","offer_id":48264802140414,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0809\/8008\/2942\/files\/Screenshot2026-01-23165249.png?v=1779835976"},{"product_id":"2007-5-2010-6-6l-duramax-carepackage-diy-kit","title":"2007.5-2010 6.6L DURAMAX CAREPACKAGE (DIY KIT)","description":"\u003cp\u003eCAREPACKAGE DIY Kit for the 2007.5-2010 6.6L Duramax. Complete performance modification kit.\u003c\/p\u003e","brand":"H2 Supply CO","offers":[{"title":"Default Title","offer_id":48264802173182,"sku":null,"price":1611.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0809\/8008\/2942\/files\/lmm_carepackage.jpg?v=1779835994"},{"product_id":"2024-2026-l5p-t93-global-b-unlock-service","title":"2024-2026 L5P T93 GLOBAL B UNLOCK SERVICE","description":"\u003cp\u003eT93 Global B Unlock Service for 2024-2026 L5P Duramax. Unlocks advanced tuning capabilities.\u003c\/p\u003e","brand":"H2 Supply CO","offers":[{"title":"Default Title","offer_id":48264803156222,"sku":null,"price":450.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0809\/8008\/2942\/files\/t93-tcm-global-b-e1685970944965.jpg?v=1779836097"},{"product_id":"2001-2016-gm-6-6l-duramax-high-flow-race-exhaust-manifolds-gaskets","title":"2001-2016 GM 6.6L DURAMAX HIGH FLOW RACE EXHAUST MANIFOLDS \u0026 GASKETS","description":"\u003ch2\u003e2001–2016 Duramax 6.6L High-Flow Race Exhaust Manifold Kit\u003c\/h2\u003e\n\u003cp\u003eImprove flow • Reduce backpressure • Increase performance\u003c\/p\u003e\n\u003cp\u003eUpgrade your 6.6L Duramax with our high-flow race exhaust manifold system, designed to replace the restrictive factory manifolds found on 2001–2016 trucks. This setup improves exhaust flow, lowers EGTs, and supports higher horsepower builds — whether you’re towing, daily driving, or running a full performance setup.\u003c\/p\u003e\n\u003ch3\u003eHigh-Flow Race Manifolds (Base Kit)\u003c\/h3\u003e\n\u003cp\u003eOur high-flow manifolds are engineered for maximum exhaust flow and durability. The base kit includes:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eHigh-flow cast manifolds\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRequired manifold bolts (Allen-style)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003eGaskets \u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDirect bolt-on fit for 2001–2016 Duramax trucks\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003ePerfect for customers who already have upgraded hardware or want a simple bolt-on replacement.\u003c\/p\u003e\n\u003ch3\u003eInstaller Kit (Highly Recommended)\u003c\/h3\u003e\n\u003cp\u003eUpgrade to the Installer Kit for the strongest and cleanest install possible. This kit includes:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eStainless steel manifold studs\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e12-point stainless nuts for superior clamping force\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eNew up-pipe to manifold bolts\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCorrosion-resistant hardware designed not to rust\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eStud-style manifold mounting for better sealing and easier maintenance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis kit replaces the standard Allen bolts with stainless studs that thread into the cylinder head, giving you a longer-lasting and more secure manifold installation.\u003c\/p\u003e\n\u003ch3\u003eOptional: Brand New Up-Pipes (Driver \u0026amp; Passenger Side)\u003c\/h3\u003e\n\u003cp\u003eFor customers wanting a full fresh setup, you can also option:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eNew passenger-side up-pipe\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eNew driver-side up-pipe\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFully compatible with both the base manifold kit and Installer Kit\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA great choice for trucks with higher mileage or trucks already apart for other upgrades.\u003c\/p\u003e\n\u003ch3\u003eWhy Choose This Kit?\u003c\/h3\u003e\n\u003cp\u003eIncreased exhaust flow\u003c\/p\u003e\n\u003cp\u003eLower EGTs\u003c\/p\u003e\n\u003cp\u003eBetter turbo response\u003c\/p\u003e\n\u003cp\u003eOptional stainless hardware that won’t rust\u003c\/p\u003e\n\u003cp\u003eDirect fit for all 2001–2016 6.6L Duramax engines\u003c\/p\u003e\n\u003cp\u003ePerfect for stock, tuned, or fully-built setups\u003c\/p\u003e","brand":"H2 Supply Co","offers":[{"title":"YES \/ YES UP PIPES","offer_id":48264803254526,"sku":null,"price":965.0,"currency_code":"USD","in_stock":true},{"title":"YES \/ NO I HAVE MY OWN","offer_id":48264803287294,"sku":null,"price":765.0,"currency_code":"USD","in_stock":true},{"title":"NO \/ YES UP PIPES","offer_id":48264803320062,"sku":null,"price":825.0,"currency_code":"USD","in_stock":true},{"title":"NO \/ NO I HAVE MY OWN","offer_id":48264803352830,"sku":null,"price":625.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0809\/8008\/2942\/files\/8d132aab7c5be3f761fa848be20a263d.webp?v=1779836111"},{"product_id":"2017-2025-l5p-duramax-injector-pigtail-set-1","title":"2017-2025 L5P DURAMAX INJECTOR PIGTAIL SET","description":"\u003cp\u003e\u003cspan\u003ePIG TAIL NEEDED TO REPLACE THE BAD INJECTOR PLUG ON THE 2017+ L5P THAT IS PRONE TO FAIL.\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eGENUINE GM PART\u003c\/span\u003e\u003c\/p\u003e","brand":"H2 Supply Co","offers":[{"title":"SET OF 4","offer_id":48264803942654,"sku":null,"price":90.0,"currency_code":"USD","in_stock":true},{"title":"SET OF 8","offer_id":48264803975422,"sku":null,"price":170.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0809\/8008\/2942\/files\/Screenshot2025-10-04031440.png?v=1779836161"},{"product_id":"2017-2025-l5p-duramax-3-5-downpipe","title":"2017-2025 L5P DURAMAX 3.5 DOWNPIPE","description":"\u003cp\u003e3.5\" Downpipe for the 2017-2025 L5P Duramax. Improves exhaust flow from the turbo.\u003c\/p\u003e","brand":"H2 Supply CO","offers":[{"title":"Default Title","offer_id":48264804008190,"sku":null,"price":292.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0809\/8008\/2942\/files\/Screenshot2025-10-04030842.png?v=1779836176"},{"product_id":"2017-2023-l5p-stock-drop-in-turbocharger-billet-wheel","title":"2017-2023 L5P STOCK DROP IN TURBOCHARGER BILLET WHEEL","description":"\u003cp data-start=\"137\" data-end=\"228\"\u003e2017-2023 GM L5P Duramax Turbocharger – \u003cstrong data-start=\"177\" data-end=\"228\"\u003eBillet Wheel, Drop-In Replacement (No Actuator)\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr data-start=\"230\" data-end=\"233\"\u003e\n\u003ch2 data-start=\"235\" data-end=\"251\"\u003eDescription\u003c\/h2\u003e\n\u003cp data-start=\"253\" data-end=\"562\"\u003eUpgrade your 2017-2023 Chevy\/GMC L5P Duramax with this \u003cstrong data-start=\"308\" data-end=\"339\"\u003edirect drop-in turbocharger\u003c\/strong\u003e featuring a precision-machined \u003cstrong data-start=\"371\" data-end=\"398\"\u003ebillet compressor wheel\u003c\/strong\u003e. Designed as a stock-location replacement, this turbo delivers improved airflow, faster spool, and enhanced durability — without the need for custom fabrication.\u003c\/p\u003e\n\u003cp data-start=\"564\" data-end=\"742\"\u003eThis unit does \u003cstrong data-start=\"579\" data-end=\"618\"\u003enot include the electronic actuator\u003c\/strong\u003e, making it the perfect choice if your actuator is still in good condition or you plan to transfer over your existing one.\u003c\/p\u003e\n\u003chr data-start=\"744\" data-end=\"747\"\u003e\n\u003ch2 data-start=\"749\" data-end=\"766\"\u003eKey Features\u003c\/h2\u003e\n\u003cul data-start=\"768\" data-end=\"1687\"\u003e\n\u003cli data-start=\"768\" data-end=\"854\"\u003e\n\u003cp data-start=\"770\" data-end=\"854\"\u003e\u003cstrong data-start=\"770\" data-end=\"782\"\u003eFitment:\u003c\/strong\u003e 2017-2023 Chevrolet Silverado \u0026amp; GMC Sierra 2500\/3500 L5P Duramax 6.6L\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"855\" data-end=\"947\"\u003e\n\u003cp data-start=\"857\" data-end=\"947\"\u003e\u003cstrong data-start=\"857\" data-end=\"881\"\u003eDrop-In Replacement:\u003c\/strong\u003e Installs in the factory location with no modifications required\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"948\" data-end=\"1075\"\u003e\n\u003cp data-start=\"950\" data-end=\"1075\"\u003e\u003cstrong data-start=\"950\" data-end=\"978\"\u003eBillet Compressor Wheel:\u003c\/strong\u003e Lightweight, stronger than cast, optimized blade design for improved airflow and quicker spool\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1076\" data-end=\"1184\"\u003e\n\u003cp data-start=\"1078\" data-end=\"1184\"\u003e\u003cstrong data-start=\"1078\" data-end=\"1093\"\u003eDurability:\u003c\/strong\u003e Heavy-duty construction designed to handle higher boost pressures and performance tuning\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1185\" data-end=\"1275\"\u003e\n\u003cp data-start=\"1187\" data-end=\"1275\"\u003e\u003cstrong data-start=\"1187\" data-end=\"1212\"\u003eNo Actuator Included:\u003c\/strong\u003e Reuse your existing actuator or install a new one separately\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1276\" data-end=\"1412\"\u003e\n\u003cp data-start=\"1278\" data-end=\"1412\"\u003e\u003cstrong data-start=\"1278\" data-end=\"1303\"\u003eImproved Performance:\u003c\/strong\u003e Supports increased horsepower and torque with tuning, while maintaining drivability and towing reliability\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1413\" data-end=\"1525\"\u003e\n\u003cp data-start=\"1415\" data-end=\"1525\"\u003e\u003cstrong data-start=\"1415\" data-end=\"1435\"\u003e1-Year Warranty:\u003c\/strong\u003e Backed by a 12-month manufacturer warranty against defects in materials and workmanship\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1526\" data-end=\"1687\"\u003e\n\u003cp data-start=\"1528\" data-end=\"1687\"\u003e\u003cstrong data-start=\"1528\" data-end=\"1551\"\u003eCore Charge Policy:\u003c\/strong\u003e Customer is responsible for the cost of shipping the core turbocharger back to us\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1689\" data-end=\"1692\"\u003e\n\u003ch2 data-start=\"1694\" data-end=\"1707\"\u003eBenefits\u003c\/h2\u003e\n\u003cul data-start=\"1709\" data-end=\"2002\"\u003e\n\u003cli data-start=\"1709\" data-end=\"1745\"\u003e\n\u003cp data-start=\"1711\" data-end=\"1745\"\u003eFaster spool \u0026amp; reduced turbo lag\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1746\" data-end=\"1799\"\u003e\n\u003cp data-start=\"1748\" data-end=\"1799\"\u003eIncreased airflow for higher horsepower potential\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1800\" data-end=\"1859\"\u003e\n\u003cp data-start=\"1802\" data-end=\"1859\"\u003eStronger billet wheel resists stress, heat, and fatigue\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1860\" data-end=\"1929\"\u003e\n\u003cp data-start=\"1862\" data-end=\"1929\"\u003ePerfect upgrade for tuned trucks or as a stronger OEM replacement\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1930\" data-end=\"2002\"\u003e\n\u003cp data-start=\"1932\" data-end=\"2002\"\u003eKeeps factory fitment — stock lines and connections remain unchanged\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2004\" data-end=\"2007\"\u003e\n\u003ch2 data-start=\"2009\" data-end=\"2019\"\u003eNotes\u003c\/h2\u003e\n\u003cul data-start=\"2021\" data-end=\"2347\"\u003e\n\u003cli data-start=\"2021\" data-end=\"2098\"\u003e\n\u003cp data-start=\"2023\" data-end=\"2098\"\u003eActuator is \u003cstrong data-start=\"2035\" data-end=\"2051\"\u003eNOT included\u003c\/strong\u003e (reuse OEM actuator or purchase separately).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2099\" data-end=\"2197\"\u003e\n\u003cp data-start=\"2101\" data-end=\"2197\"\u003e\u003cstrong data-start=\"2101\" data-end=\"2158\"\u003eCustomer must cover cost of shipping their core to us\u003c\/strong\u003e — this is not included in the price.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2198\" data-end=\"2253\"\u003e\n\u003cp data-start=\"2200\" data-end=\"2253\"\u003eCovered by a \u003cstrong data-start=\"2213\" data-end=\"2232\"\u003e1-Year Warranty\u003c\/strong\u003e for peace of mind.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2254\" data-end=\"2296\"\u003e\n\u003cp data-start=\"2256\" data-end=\"2296\"\u003eProfessional installation recommended.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2297\" data-end=\"2347\"\u003e\n\u003cp data-start=\"2299\" data-end=\"2347\"\u003eTuning NOT required \u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"H2 Supply Co","offers":[{"title":"I WILL SEND MY TURBO IN FIRST","offer_id":48264804040958,"sku":null,"price":1665.0,"currency_code":"USD","in_stock":true},{"title":"I WILL PAY CORE CHARGE THEN SEND MY TURBO","offer_id":48264804073726,"sku":null,"price":1980.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0809\/8008\/2942\/files\/Screenshot2025-10-04023835_d111c16a-e039-49a5-8cd2-8121df9a8b2f.png?v=1779836187"},{"product_id":"2017-2019-l5p-transmission-cooler-thermostat-bypass-plug","title":"2017-2019 L5P Transmission Cooler Thermostat Bypass Plug","description":"\u003cp\u003e2017-2019 L5P Duramax Billet Anodized Transmission Cooler Thermostat Bypass Plug, The stock thermostatic bypass for warming up the Allison quickly in cold weather conditions is a good idea in principle, but in practice we've seen the valve fail forcing trans fluid around the cooler in warm weather conditions that cause dangerous fluid temperatures for built and stock transmissions alike. We've been running this design on our shop development trucks and with our built transmissions successfully and are now making them available for purchase separately due to popular demand. Recommended for trucks with stock or built transmissions and performing heavy towing in warm climates to help keep fluid temperatures in check.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCNC Machined Billet Aluminum Thermostatic Bypass Plug\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHigh temperature silicone O-ring seals\u003c\/li\u003e\n\u003cli\u003eReduces fluid flow restriction to trans cooler\u003c\/li\u003e\n\u003cli\u003eSimple Installation\u003c\/li\u003e\n\u003cli\u003eExperience fluid temperature drops from 15-50 degrees F\u003c\/li\u003e\n\u003cli\u003eDirect replacement of the failure prone OEM thermostat\u003c\/li\u003e\n\u003cli\u003eEasy swap back to OEM setup for cold weather use\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"H2 Supply Co","offers":[{"title":"Default Title","offer_id":48264804466942,"sku":null,"price":70.0,"currency_code":"USD","in_stock":true}]},{"product_id":"2017-2023-l5p-unlocked-e41-ecm","title":"2017-2023 L5P Unlocked E41 ECM","description":"\u003cp data-start=\"206\" data-end=\"309\"\u003e\u003cstrong data-start=\"206\" data-end=\"307\"\u003e2017+ Chevrolet Silverado \/ GMC Sierra 2500 \u0026amp; 3500 6.6L Duramax L5P E41 ECM – Upgrade or Purchase\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"311\" data-end=\"444\"\u003eUnlock the full tuning potential of your 2017+ L5P Duramax with HP Tuners’ E41 ECM Service. Choose the option that fits your needs:\u003c\/p\u003e\n\u003chr data-start=\"446\" data-end=\"449\"\u003e\n\u003ch3 data-start=\"451\" data-end=\"488\"\u003e\u003cstrong data-start=\"455\" data-end=\"486\"\u003eOption 1 – New ECM Purchase\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"489\" data-end=\"550\"\u003eGet a brand-new, pre-upgraded E41 ECM with \u003cstrong data-start=\"532\" data-end=\"547\"\u003eno downtime\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cul data-start=\"551\" data-end=\"794\"\u003e\n\u003cli data-start=\"551\" data-end=\"602\"\u003e\n\u003cp data-start=\"553\" data-end=\"602\"\u003eAlready unlocked for HP Tuners VCM Suite (BETA)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"603\" data-end=\"643\"\u003e\n\u003cp data-start=\"605\" data-end=\"643\"\u003eNo need to send in your original ECM\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"644\" data-end=\"752\"\u003e\n\u003cp data-start=\"646\" data-end=\"752\"\u003eEliminates IMMO relearn, crank relearn, and “Replace ECM” functions when installed in the original truck\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"753\" data-end=\"794\"\u003e\n\u003cp data-start=\"755\" data-end=\"794\"\u003ePerfect for getting tuned immediately\u003cmeta charset=\"utf-8\"\u003e\u003c\/p\u003e\n\u003ch3 data-start=\"801\" data-end=\"841\"\u003e\u003cstrong data-start=\"805\" data-end=\"839\"\u003eOption 2 – ECM Upgrade Service\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"842\" data-end=\"888\"\u003eSend in your current E41 ECM for an upgrade.\u003c\/p\u003e\n\u003cul data-start=\"889\" data-end=\"1112\"\u003e\n\u003cli data-start=\"889\" data-end=\"933\"\u003e\n\u003cp data-start=\"891\" data-end=\"933\"\u003eRemove your ECM and ship it to HP Tuners\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"934\" data-end=\"982\"\u003e\n\u003cp data-start=\"936\" data-end=\"982\"\u003eReturned fully unlocked and ready for tuning\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"983\" data-end=\"1059\"\u003e\n\u003cp data-start=\"985\" data-end=\"1059\"\u003eMust be in good working condition with no broken tabs or damaged housing\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1060\" data-end=\"1112\"\u003e\n\u003cp data-start=\"1062\" data-end=\"1112\"\u003e1–3 business day turnaround (excluding shipping)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1114\" data-end=\"1117\"\u003e\n\u003cp data-start=\"1119\" data-end=\"1152\"\u003e\u003cstrong data-start=\"1119\" data-end=\"1150\"\u003eWhat’s Required for Tuning:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1153\" data-end=\"1304\"\u003e\n\u003cli data-start=\"1153\" data-end=\"1204\"\u003e\n\u003cp data-start=\"1155\" data-end=\"1204\"\u003eLatest HP Tuners VCM Suite BETA (free download)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1205\" data-end=\"1248\"\u003e\n\u003cp data-start=\"1207\" data-end=\"1248\"\u003e6 Universal Credits to license your ECM\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1249\" data-end=\"1304\"\u003e\n\u003cp data-start=\"1251\" data-end=\"1304\"\u003eMPVI3, MPVI2+, or MPVI2 interface (sold separately)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1306\" data-end=\"1402\"\u003e\u003cstrong data-start=\"1306\" data-end=\"1332\"\u003eVehicle Compatibility:\u003c\/strong\u003e\u003cbr data-start=\"1332\" data-end=\"1335\"\u003e2017+ Chevrolet Silverado \u0026amp; GMC Sierra 2500\/3500 6.6L Duramax L5P\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"H2 Supply Co","offers":[{"title":"NEW MODIFIED ECM","offer_id":48264805056766,"sku":null,"price":1350.0,"currency_code":"USD","in_stock":true},{"title":"ECM UPGRADE (SEND IN YOUR ECM TO GET UPGRADED)","offer_id":48264805089534,"sku":null,"price":585.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0809\/8008\/2942\/files\/Screenshot_2025-08-13_at_10.32.20_PM.png?v=1779836464"},{"product_id":"2024-2026-gm-duramax-l5p-global-b-hp-tuners-gm-e42-ecm-upgrade-service","title":"2024-2026 GM Duramax L5P - Global B HP Tuners GM E42 ECM Upgrade Service","description":"\u003carticle class=\"text-token-text-primary w-full focus:outline-none scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"4ef76d7d-a53e-4c97-93fd-a0b05616dcc4\" data-testid=\"conversation-turn-2\" data-scroll-anchor=\"true\" data-turn=\"assistant\" tabindex=\"-1\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:--spacing(4)] @[37rem]:[--thread-content-margin:--spacing(6)] @[72rem]:[--thread-content-margin:--spacing(16)] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:32rem] @[34rem]:[--thread-content-max-width:40rem] @[64rem]:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\" tabindex=\"-1\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col grow\"\u003e\n\u003cdiv data-message-author-role=\"assistant\" data-message-id=\"0593c339-c505-4774-9fe8-19d6845f46ff\" dir=\"auto\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal [.text-message+\u0026amp;]:mt-5\" data-message-model-slug=\"gpt-5\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden first:pt-[3px]\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert w-full break-words dark markdown-new-styling\"\u003e\n\u003cp data-start=\"183\" data-end=\"252\"\u003e\u003cstrong data-start=\"183\" data-end=\"250\"\u003eHP Tuners GM E42 ECM Upgrade Service – 2024–2025 GM L5P Duramax\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"254\" data-end=\"480\"\u003eUnlock the full tuning potential of your 2024–2025 GM L5P Duramax with HP Tuners’ E42 ECM Upgrade Service. This mail-in upgrade is the first required step for custom tuning using HP Tuners’ VCM Suite (Beta) and MPVI3 device.\u003c\/p\u003e\n\u003cp data-start=\"482\" data-end=\"501\"\u003e\u003cstrong data-start=\"482\" data-end=\"499\"\u003eHow It Works:\u003c\/strong\u003e\u003c\/p\u003e\n\u003col data-start=\"502\" data-end=\"736\"\u003e\n\u003cli data-start=\"502\" data-end=\"524\"\u003e\n\u003cp data-start=\"505\" data-end=\"524\"\u003ePlace your order.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"525\" data-end=\"610\"\u003e\n\u003cp data-start=\"528\" data-end=\"610\"\u003eReceive detailed shipping instructions for sending in your original factory ECM.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"611\" data-end=\"654\"\u003e\n\u003cp data-start=\"614\" data-end=\"654\"\u003eHP Tuners performs the unlock service.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"655\" data-end=\"736\"\u003e\n\u003cp data-start=\"658\" data-end=\"736\"\u003eYour ECM is shipped back, fully unlocked and ready for licensing and tuning.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp data-start=\"738\" data-end=\"760\"\u003e\u003cstrong data-start=\"738\" data-end=\"758\"\u003eWhat’s Included:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"761\" data-end=\"868\"\u003e\n\u003cli data-start=\"761\" data-end=\"813\"\u003e\n\u003cp data-start=\"763\" data-end=\"813\"\u003eE42 ECM unlock for 2024–2025 6.6L GM L5P Duramax\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"814\" data-end=\"868\"\u003e\n\u003cp data-start=\"816\" data-end=\"868\"\u003eReturn shipping \u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"870\" data-end=\"889\"\u003e\u003cstrong data-start=\"870\" data-end=\"887\"\u003eRequirements:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"890\" data-end=\"1102\"\u003e\n\u003cli data-start=\"890\" data-end=\"940\"\u003e\n\u003cp data-start=\"892\" data-end=\"940\"\u003eMPVI3 device (MPVI2 and MPVI2+ not compatible)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"941\" data-end=\"979\"\u003e\n\u003cp data-start=\"943\" data-end=\"979\"\u003e8 Universal Credits to license ECM\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"980\" data-end=\"1066\"\u003e\n\u003cp data-start=\"982\" data-end=\"1066\"\u003eOriginal ECM only—must be in good condition with no broken tabs or damaged plastic\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1067\" data-end=\"1102\"\u003e\n\u003cp data-start=\"1069\" data-end=\"1102\"\u003eSpare ECMs are \u003cstrong data-start=\"1084\" data-end=\"1100\"\u003enot accepted\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1104\" data-end=\"1127\"\u003e\u003cstrong data-start=\"1104\" data-end=\"1125\"\u003eSupported Models:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1128\" data-end=\"1234\"\u003e\n\u003cli data-start=\"1128\" data-end=\"1185\"\u003e\n\u003cp data-start=\"1130\" data-end=\"1185\"\u003e2024–2025 Chevrolet Silverado HD 2500\/3500 (6.6L L5P)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1186\" data-end=\"1234\"\u003e\n\u003cp data-start=\"1188\" data-end=\"1234\"\u003e2024–2025 GMC Sierra HD 2500\/3500 (6.6L L5P)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cblockquote data-start=\"1236\" data-end=\"1422\"\u003e\n\u003cp data-start=\"1238\" data-end=\"1422\"\u003e \u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"flex min-h-[46px] justify-start\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/article\u003e","brand":"H2 Supply Co","offers":[{"title":"Default Title","offer_id":48264805253374,"sku":null,"price":1350.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0809\/8008\/2942\/files\/Screenshot_2025-08-13_at_5.12.57_PM.png?v=1779836474"},{"product_id":"2017-2026-l5p-polished-downpipe-304-stainless","title":"2017-2026 L5P Polished DownPipe 304 Stainless","description":"\u003cp\u003e\u003cspan\u003e2017–2025 Duramax 6.6L Downpipe\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis premium downpipe is built to withstand the harshest conditions. Constructed from T304 stainless steel, it delivers the quality and durability your truck deserves. Designed for a hassle-free, straightforward installation, this downpipe helps lower exhaust gas temperatures (EGTs), improve fuel efficiency, enhance exhaust flow, and boost both horsepower and torque.\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFeatures\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eT304 polished stainless steel\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBillet-machined flange\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eHeat-wrapped for thermal protection\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eEasy, direct-fit installation\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFitment\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e2017–2025 Chevrolet\/GMC Duramax 6.6L L5P\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFits models with the OEM-style 4-bolt flange off the downpipe\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eNote\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis product is intended for off-road and race use only. It is not designed for use on public roads or highways. Installation requires aftermarket tuning and modifications. The seller is not responsible for any damage, injury, or legal issues resulting from improper installation or use. Install and operate at your own risk!\u003c\/span\u003e\u003c\/p\u003e","brand":"H2 Supply Co","offers":[{"title":"Default Title","offer_id":48264806039806,"sku":null,"price":405.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0809\/8008\/2942\/files\/B1E72888-9CDE-4887-BF45-D57C8CE21E8B.png?v=1779836474"},{"product_id":"2024-2026-l5p-care-package-diy-kit","title":"2024 - 2026 L5P CARE PACKAGE (DIY KIT)","description":"\u003cp\u003eWhat’s Included?\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLIFETIME SUPPORT \u0026amp; FREE RETUNES\u003c\/li\u003e\n\u003cli\u003eMPVI4 or RTD4 (optional) works with MPVI3 also\u003c\/li\u003e\n\u003cli\u003eEGR SOLUTION KIT\u003c\/li\u003e\n\u003cli\u003eTurbo Gaskets \u003c\/li\u003e\n\u003cli\u003e3.5” Stainless Down Pipe\u003c\/li\u003e\n\u003cli\u003eExhaust Optional \u003c\/li\u003e\n\u003cli\u003eCAN BUS Plugs ( not required but included )\u003c\/li\u003e\n\u003cli\u003eCustom Engine Tuning Single (SOTF COMING SOON)\u003cstrong\u003e\u003cem\u003e \u003cstrong\u003eWHEN SOTF BECOMES AVALIBLE ALL CUSTOMERS WHO BOUGHT THIS COMPLETE CAREPACKAGE WILL GET FREE SOTF UPGRADE! NO IT DOES NOT MATTER HOW YOU OPTION IT! \u003c\/strong\u003e\u003c\/em\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eE42 Unlock Service Global B (optional)\u003c\/li\u003e\n\u003cli\u003eCustom engine tuning will include 0 - 200HP Options \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong style=\"font-size: 0.875rem;\"\u003eTRANSMISSION TUNING SOLD SEPARATELY!! NOT INCLUDED WITH THIS PACKAGE\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong style=\"font-size: 0.875rem;\"\u003eREQUIRES GLOBAL B TCM UNLOCK AND GLOBAL B TCM TUNING. \u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEXHAUST OPTIONS (choose one)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e5” Full Exhaust 409 Stainless \u003c\/li\u003e\n\u003cli\u003e4” Full Exhaust 409 Stainless \u003c\/li\u003e\n\u003cli\u003e4” DPF Solution Pipe Only ( Race Pipe ) \u003c\/li\u003e\n\u003cli\u003e5\" Full Exhaust and Polished Down Pipe 304 Stainless\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eE42 Unlock Service:\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003e\u003c\/b\u003e\u003cspan\u003e2024–2025 L5P ECM Unlock Service (Included in Kit)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eUnlock the full tuning potential of your 2024–2025 L5P Duramax with this mail-in ECM unlock service, now available as part of our complete tuning kit. This is the required upgrade for GM’s new E42 ECM platform and is powered by HP Tuners, the industry leader in custom tuning solutions.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eBy unlocking your ECM now, you’ll be fully prepped for custom tuning the moment it becomes available—no delays, no waiting.\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003ePlease note: Since this is a brand-new unlock service, processing times may exceed the usual 1–3 business days. We appreciate your patience as we scale to meet demand.\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eHP Tuners credits are NOT included with this unlock service.\u003c\/span\u003e\u003c\/p\u003e","brand":"H2 Supply Co","offers":[{"title":"5” Full Exhaust \/ YES \/ Yes I need HP TUNERS DEVICE","offer_id":48264811708670,"sku":null,"price":4455.0,"currency_code":"USD","in_stock":true},{"title":"5” Full Exhaust \/ NO \/ Yes I need HP TUNERS DEVICE","offer_id":48264811741438,"sku":null,"price":3690.0,"currency_code":"USD","in_stock":true},{"title":"4” Full Exhaust \/ YES \/ Yes I need HP TUNERS DEVICE","offer_id":48264811774206,"sku":null,"price":4365.0,"currency_code":"USD","in_stock":true},{"title":"4” Full Exhaust \/ NO \/ Yes I need HP TUNERS DEVICE","offer_id":48264811806974,"sku":null,"price":3600.0,"currency_code":"USD","in_stock":true},{"title":"4” DPF DELETE PIPE ( race pipe ) \/ YES \/ Yes I need HP TUNERS DEVICE","offer_id":48264811839742,"sku":null,"price":4095.0,"currency_code":"USD","in_stock":true},{"title":"4” DPF DELETE PIPE ( race pipe ) \/ NO \/ Yes I need HP TUNERS DEVICE","offer_id":48264811872510,"sku":null,"price":3330.0,"currency_code":"USD","in_stock":true},{"title":"POLISHED 5\" \u0026 POLISHED DOWN PIPE \/ YES \/ Yes I need HP TUNERS DEVICE","offer_id":48264811905278,"sku":null,"price":6030.0,"currency_code":"USD","in_stock":true},{"title":"POLISHED 5\" \u0026 POLISHED DOWN PIPE \/ NO \/ Yes I need HP TUNERS DEVICE","offer_id":48264811938046,"sku":null,"price":5140.0,"currency_code":"USD","in_stock":true},{"title":"5” Full Exhaust \/ YES \/ No I have my own","offer_id":48264811970814,"sku":null,"price":4105.0,"currency_code":"USD","in_stock":true},{"title":"5” Full Exhaust \/ NO \/ No I have my own","offer_id":48264812003582,"sku":null,"price":3340.0,"currency_code":"USD","in_stock":true},{"title":"4” Full Exhaust \/ YES \/ No I have my own","offer_id":48264812036350,"sku":null,"price":4015.0,"currency_code":"USD","in_stock":true},{"title":"4” Full Exhaust \/ NO \/ No I have my own","offer_id":48264812069118,"sku":null,"price":3250.0,"currency_code":"USD","in_stock":true},{"title":"4” DPF DELETE PIPE ( race pipe ) \/ YES \/ No I have my own","offer_id":48264812101886,"sku":null,"price":3745.0,"currency_code":"USD","in_stock":true},{"title":"4” DPF DELETE PIPE ( race pipe ) \/ NO \/ No I have my own","offer_id":48264812134654,"sku":null,"price":2980.0,"currency_code":"USD","in_stock":true},{"title":"POLISHED 5\" \u0026 POLISHED DOWN PIPE \/ YES \/ No I have my own","offer_id":48264812167422,"sku":null,"price":5680.0,"currency_code":"USD","in_stock":true},{"title":"POLISHED 5\" \u0026 POLISHED DOWN PIPE \/ NO \/ No I have my own","offer_id":48264812200190,"sku":null,"price":4790.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0809\/8008\/2942\/files\/l5p-denali-1.jpg?v=1780016037"},{"product_id":"2017-2025-gm-6-6l-duramax-l5p-egr-delete-kit-with-4-dpf-cat-delete-pipe-and-3-5-downpipe-and-2020-ca","title":"2017-2025 GM 6.6L Duramax L5P EGR Solution kit with 4\" DPF \u0026 Cat Solution Pipe and 3.5\" Downpipe and 2020+ CAN Bus Plugs","description":"\u003cp data-start=\"74\" data-end=\"192\"\u003e\u003cstrong data-start=\"74\" data-end=\"192\"\u003e2017–2023 GM 6.6L Duramax L5P EGR Solution Kit with 4\" DPF \u0026amp; CAT Solution Pipe, 3.5\" Downpipe, and 2020+ CAN Bus Plugs\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"194\" data-end=\"557\"\u003eTake your Duramax to the next level with this all-in-one EGR Solution Kit designed for 2017–2023 GM 6.6L Duramax L5P engines. This complete package includes a 4\" DPF and CAT Solution Pipe, a 3.5\" Downpipe, and CAN Bus Plugs for 2020+ models—combining to improve exhaust flow, reduce backpressure, eliminate EGR restrictions, and maintain proper CAN Bus communication.\u003c\/p\u003e\n\u003cp data-start=\"559\" data-end=\"576\"\u003e\u003cstrong data-start=\"559\" data-end=\"576\"\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"577\" data-end=\"1141\"\u003e\n\u003cli data-start=\"577\" data-end=\"642\"\u003e\n\u003cp data-start=\"579\" data-end=\"642\"\u003eFits 2017–2023 GM trucks with 6.6L Duramax L5P diesel engines\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"643\" data-end=\"721\"\u003e\n\u003cp data-start=\"645\" data-end=\"721\"\u003eRemoves factory EGR system to reduce carbon buildup and intake restriction\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"722\" data-end=\"820\"\u003e\n\u003cp data-start=\"724\" data-end=\"820\"\u003e4\" DPF \u0026amp; CAT Solution Pipe enhances exhaust flow by eliminating restrictive emissions components\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"821\" data-end=\"887\"\u003e\n\u003cp data-start=\"823\" data-end=\"887\"\u003e3.5\" Downpipe improves exhaust scavenging and turbo efficiency\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"888\" data-end=\"993\"\u003e\n\u003cp data-start=\"890\" data-end=\"993\"\u003eIncludes CAN Bus Plugs designed for 2020 and newer models to ensure proper electronic system function\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"994\" data-end=\"1070\"\u003e\n\u003cp data-start=\"996\" data-end=\"1070\"\u003eMade from high-quality materials for durability and corrosion resistance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1071\" data-end=\"1141\"\u003e\n\u003cp data-start=\"1073\" data-end=\"1141\"\u003eIdeal for off-road and performance use (not for street use)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"H2 Supply Co","offers":[{"title":"17-19","offer_id":48264812593406,"sku":null,"price":1035.0,"currency_code":"USD","in_stock":true},{"title":"20-23","offer_id":48264812626174,"sku":null,"price":1055.0,"currency_code":"USD","in_stock":true},{"title":"24-25","offer_id":48264812658942,"sku":null,"price":1055.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0809\/8008\/2942\/files\/025d062c76f50134aa0e58203b724703.webp?v=1779836561"},{"product_id":"2011-2016-6-6l-chevy-duramax-lml-ccv-pcv-reroute-delete-kit","title":"2011-2016 6.6L Chevy Duramax LML CCV PCV ReRoute Solution Kit","description":"\u003cp\u003e\u003cspan\u003eDesigned specifically for 2011–2016 Chevy\/GMC 2500HD and 3500HD trucks with the 6.6L LML Duramax, this CCV\/PCV Reroute Solution Kit is the go-to solution for eliminating the factory crankcase vent box and all the problems that come with it.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe stock system vents oily crankcase vapors back into your intake, causing gummed-up turbo components, boot soak, and reduced engine life. Our upgraded aluminum venturi-style system reroutes crankcase blow-by away from your intake, drastically reducing oil deposits and helping your engine breathe cleaner, run cooler, and last longer.\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhy You’ll Want This Kit:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e• Direct fit for 2011–2016 6.6L LML Duramax (2500HD\/3500HD)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e• Vents crankcase blow-by externally, reducing intake gunk and turbo contamination\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e• Eliminates the factory crankcase box—frees up valuable engine bay space\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e• Venturi-style design improves flow with no restrictive baffles\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e• No more boot soak or oil dripping—helps protect turbo boots and intercooler pipes\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e• Virtually zero oil loss—no puddles under your truck\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e• Includes 5 feet of ¾” reinforced 100% silicone hose, rated for oil exposure\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e• Black anodized billet aluminum components for a clean, durable finish\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e• Streamlined design with no sharp bends—maximizes pressure flow and minimizes mess\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhether you’re building a cleaner engine bay or just want to eliminate long-term maintenance headaches, this kit is a must-have upgrade for every LML Duramax owner.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"119\" data-end=\"218\"\u003e\u003cstrong data-start=\"119\" data-end=\"218\"\u003e\u003c\/strong\u003e\u003cstrong data-start=\"989\" data-end=\"998\"\u003eNote:\u003c\/strong\u003e \u003cem data-start=\"999\" data-end=\"1118\"\u003eFor off-road use only. Not legal for use on public highways. Check local and federal emissions laws before installing.\u003c\/em\u003e\u003c\/p\u003e","brand":"H2 Supply Co","offers":[{"title":"Default Title","offer_id":48264812691710,"sku":null,"price":75.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0809\/8008\/2942\/files\/15cd3dfa8716cb383454c644488c1d56.webp?v=1779836560"},{"product_id":"2017-2025-gm-6-6l-duramax-l5p-diesel-oem-length-replacement-high-flow-up-pipes","title":"2017-2025 GM 6.6L Duramax L5P Diesel OEM Length Replacement High Flow Up Pipes","description":"\u003cp data-start=\"100\" data-end=\"188\"\u003e\u003cstrong data-start=\"100\" data-end=\"188\"\u003eOEM Length Replacement High Flow Up Pipes – For 2017–2023 GM 6.6L Duramax L5P Diesel\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"190\" data-end=\"486\"\u003eUpgrade your Duramax exhaust system with these OEM length replacement high flow up pipes designed for 2017–2023 GM 6.6L Duramax L5P diesel engines. Engineered to improve exhaust flow and reduce backpressure, these pipes help boost performance and turbo efficiency while maintaining a perfect fit.\u003c\/p\u003e\n\u003cp data-start=\"488\" data-end=\"505\"\u003e\u003cstrong data-start=\"488\" data-end=\"505\"\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"506\" data-end=\"892\"\u003e\n\u003cli data-start=\"506\" data-end=\"590\"\u003e\n\u003cp data-start=\"508\" data-end=\"590\"\u003eDirect replacement for factory up pipes on 2017–2023 GM 6.6L Duramax L5P engines\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"591\" data-end=\"678\"\u003e\n\u003cp data-start=\"593\" data-end=\"678\"\u003eHigh flow design enhances exhaust gas evacuation for improved horsepower and torque\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"679\" data-end=\"744\"\u003e\n\u003cp data-start=\"681\" data-end=\"744\"\u003eMaintains OEM length and fitment for hassle-free installation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"745\" data-end=\"820\"\u003e\n\u003cp data-start=\"747\" data-end=\"820\"\u003eConstructed from durable materials to withstand high heat and corrosion\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"821\" data-end=\"892\"\u003e\n\u003cp data-start=\"823\" data-end=\"892\"\u003eIdeal for performance upgrades or replacement of worn\/damaged pipes\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"H2 Supply Co","offers":[{"title":"Default Title","offer_id":48264812724478,"sku":null,"price":200.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0809\/8008\/2942\/files\/ffc4574619197db0f936096298928a1f.webp?v=1779836561"},{"product_id":"2020-2025-duramax-diesel-l5p-lm2-lz0-can-bus-plugs","title":"2020-2025 Duramax Diesel L5P\/LM2\/LZ0 CAN Bus Plugs","description":"\u003cp data-start=\"93\" data-end=\"146\"\u003e\u003cstrong data-start=\"93\" data-end=\"146\"\u003eCAN Bus Plugs – Fits Duramax Diesel L5P\/LM2\/LZ0 2020–2025\u003c\/strong\u003e\u003cstrong data-start=\"93\" data-end=\"146\"\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"148\" data-end=\"399\"\u003eMaintain reliable communication within your vehicle’s electronic system with these CAN Bus Plugs, designed for 2020–2025 GM Duramax Diesel L5P engines. Perfect for ensuring smooth diagnostics, system upgrades, or repairs involving the CAN Bus network.\u003c\/p\u003e\n\u003cp data-start=\"401\" data-end=\"418\"\u003e\u003cstrong data-start=\"401\" data-end=\"418\"\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"419\" data-end=\"682\"\u003e\n\u003cli data-start=\"419\" data-end=\"478\"\u003e\n\u003cp data-start=\"421\" data-end=\"478\"\u003eCompatible with 2020–2025 GM Duramax Diesel L5P\/LM2\/LZ0 Engine\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"479\" data-end=\"552\"\u003e\n\u003cp data-start=\"481\" data-end=\"552\"\u003ePreserves proper CAN Bus functionality for accurate data transmission\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"553\" data-end=\"611\"\u003e\n\u003cp data-start=\"555\" data-end=\"611\"\u003eSimple installation with secure and durable connectors\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"612\" data-end=\"682\"\u003e\n\u003cp data-start=\"614\" data-end=\"682\"\u003eBuilt to withstand automotive conditions for long-term reliability\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"H2 Supply Co","offers":[{"title":"Default Title","offer_id":48264812757246,"sku":null,"price":125.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0809\/8008\/2942\/files\/0879a22885f5828d41fb9a674a08eb4c_93892f89-7c54-4cc5-9070-70fad19c4716.webp?v=1779836560"},{"product_id":"2017-2019-duramax-diesel-l5p-can-bus-plugs-fits","title":"2017-2019 Duramax Diesel L5P CAN Bus Plugs Fits","description":"\u003cp data-start=\"81\" data-end=\"134\"\u003e\u003cstrong data-start=\"81\" data-end=\"134\"\u003eCAN Bus Plugs – Fits Duramax Diesel L5P 2017–2019\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"136\" data-end=\"368\"\u003eEnsure seamless communication and diagnostics with these high-quality CAN Bus Plugs designed specifically for 2017–2019 Duramax Diesel L5P engines. Perfect for maintenance, repairs, or upgrades involving your truck’s CAN Bus system.\u003c\/p\u003e\n\u003cp data-start=\"370\" data-end=\"387\"\u003e\u003cstrong data-start=\"370\" data-end=\"387\"\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"388\" data-end=\"602\"\u003e\n\u003cli data-start=\"388\" data-end=\"447\"\u003e\n\u003cp data-start=\"390\" data-end=\"447\"\u003eCompatible with 2017–2019 GM Duramax Diesel L5P engines\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"448\" data-end=\"504\"\u003e\n\u003cp data-start=\"450\" data-end=\"504\"\u003eDesigned to maintain proper CAN Bus network function\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"505\" data-end=\"548\"\u003e\n\u003cp data-start=\"507\" data-end=\"548\"\u003eEasy to install and reliable connection\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"549\" data-end=\"602\"\u003e\n\u003cp data-start=\"551\" data-end=\"602\"\u003eDurable construction for long-lasting performance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"H2 Supply Co","offers":[{"title":"Default Title","offer_id":48264812790014,"sku":null,"price":110.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0809\/8008\/2942\/files\/e9c1ff8449faff627794fff9801a7409_dff55f0d-ac62-4213-9b8e-cac30267ca68.webp?v=1779836560"},{"product_id":"2017-2019-gm-6-6l-l5p-duramax-3-5-polished-turbo-intake-horn-kit","title":"2017-2019 GM 6.6L L5P Duramax 3.5\" Polished Turbo Intake Horn Kit","description":"\u003carticle class=\"text-token-text-primary w-full\" dir=\"auto\" data-testid=\"conversation-turn-28\" data-scroll-anchor=\"true\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:--spacing(4)] @[37rem]:[--thread-content-margin:--spacing(6)] @[72rem]:[--thread-content-margin:--spacing(16)] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:32rem] @[34rem]:[--thread-content-max-width:40rem] @[64rem]:[--thread-content-max-width:48rem] mx-auto flex max-w-(--thread-content-max-width) flex-1 text-base gap-4 md:gap-5 lg:gap-6 group\/turn-messages focus-visible:outline-hidden\" tabindex=\"-1\"\u003e\n\u003cdiv class=\"group\/conversation-turn relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"relative flex-col gap-1 md:gap-3\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col grow\"\u003e\n\u003cdiv data-message-author-role=\"assistant\" data-message-id=\"3453ef55-0c2b-4af9-ad5d-5052cc906f58\" dir=\"auto\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal [.text-message+\u0026amp;]:mt-5\" data-message-model-slug=\"gpt-4-1-mini\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden first:pt-[3px]\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert w-full break-words dark\"\u003e\n\u003cp data-start=\"109\" data-end=\"184\"\u003e\u003cstrong data-start=\"109\" data-end=\"184\"\u003e3.5\" Polished Turbo Intake Horn Kit – For 2017–2019 GM 6.6L L5P Duramax\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"186\" data-end=\"486\"\u003eEnhance your Duramax’s turbo efficiency with this 3.5\" Polished Turbo Intake Horn Kit, designed for 2017–2019 GM 6.6L L5P engines. This intake upgrade improves airflow into the turbocharger, boosting throttle response and overall engine performance while adding a sleek, polished look under the hood.\u003c\/p\u003e\n\u003cp data-start=\"488\" data-end=\"505\"\u003e\u003cstrong data-start=\"488\" data-end=\"505\"\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"506\" data-end=\"819\"\u003e\n\u003cli data-start=\"506\" data-end=\"580\"\u003e\n\u003cp data-start=\"508\" data-end=\"580\"\u003eFits 2017–2019 GM trucks equipped with 6.6L L5P Duramax diesel engines\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"581\" data-end=\"649\"\u003e\n\u003cp data-start=\"583\" data-end=\"649\"\u003e3.5\" polished intake horn increases airflow and turbo efficiency\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"650\" data-end=\"699\"\u003e\n\u003cp data-start=\"652\" data-end=\"699\"\u003eCNC-machined for precision fit and durability\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"700\" data-end=\"755\"\u003e\n\u003cp data-start=\"702\" data-end=\"755\"\u003eEnhances throttle response and horsepower potential\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"756\" data-end=\"819\"\u003e\n\u003cp data-start=\"758\" data-end=\"819\"\u003eAdds a clean, high-performance aesthetic to your engine bay\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"821\" data-end=\"920\"\u003e\u003cstrong data-start=\"821\" data-end=\"830\"\u003eNote:\u003c\/strong\u003e \u003cem data-start=\"831\" data-end=\"920\"\u003eProfessional installation recommended. Verify compatibility with your specific vehicle.\u003c\/em\u003e\u003c\/p\u003e\n\u003cspan class=\"flex items-center gap-1.5 select-none\"\u003e\u003cspan class=\"sr-only whitespace-nowrap! md:not-sr-only\"\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/article\u003e","brand":"H2 Supply Co","offers":[{"title":"Default Title","offer_id":48264812822782,"sku":null,"price":135.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0809\/8008\/2942\/files\/eb319a4a88c556f3aafcd45da0a06ced.webp?v=1779836573"},{"product_id":"lbz-lmm-egr-solution-2006-2010-duramax","title":"LBZ \/LMM EGR SOLUTION 2006-2010 Duramax","description":"","brand":"H2 Supply Co","offers":[{"title":"2006-2007 LBZ","offer_id":48264875278590,"sku":null,"price":75.0,"currency_code":"USD","in_stock":true},{"title":"2007.5-2010 LMM","offer_id":48264875311358,"sku":null,"price":75.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0809\/8008\/2942\/files\/IMG-1214.jpg?v=1779838416"},{"product_id":"lml-2011-2016-6-6-duramax-down-pipe-3-v-band-or-3-bolt","title":"LML 2011-2016 6.6 Duramax Down Pipe 3” V band or 3 Bolt","description":"\u003cp\u003e\u003cspan\u003eDitch the restrictive factory downpipe and upgrade to our 3” Stainless Steel Downpipe — engineered to deliver improved airflow, lower EGTs, and a cleaner, more efficient exhaust path for your 2011–2015 LML Duramax.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFeaturing a true 3” internal diameter from end to end, this downpipe offers superior CFM (cubic feet per minute) flow compared to the stock unit. Constructed from high-quality 304 stainless steel and wrapped in fiberglass heat insulation, this emission-friendly downpipe is equipped with all three OEM sensor bungs, making it a perfect direct-fit solution.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eKey Features:\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eFull 3” Internal Bore – Smooth, unrestricted flow for improved performance\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e304 Stainless Steel Tubing – Corrosion-resistant and built to last\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eTIG-Welded, Jig-Built Construction – Ensures precision fitment and strength\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eZinc-Coated Flanges – Enhanced durability and rust protection\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e3 Factory Emissions Sensor Bungs – Fully emissions compatible\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFiberglass Heat Wrap – Helps reduce under-hood temps and manage EGTs\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDownpipe Support Tab – For secure mounting and long-term reliability\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eVehicle Fitment:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e2011–2016 Chevy\/GMC Duramax 6.6L (LML)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDesigned for trucks with V-Band style exhaust flange\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eNote:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e2015.5–2016 LML models can be converted to this V-Band style downpipe; however, exhaust modification is required.\u003c\/span\u003e\u003c\/p\u003e","brand":"H2 Supply Co","offers":[{"title":"3 Bolt","offer_id":48264875344126,"sku":null,"price":160.0,"currency_code":"USD","in_stock":true},{"title":"V band","offer_id":48264875376894,"sku":null,"price":160.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0809\/8008\/2942\/files\/IMG-1204.png?v=1779838415"},{"product_id":"l5p-2017-2026-billet-ccv-reroute","title":"L5P 2017-2026 BILLET CCV REROUTE","description":"\u003cp\u003eUpgrade your factory crankcase ventilation system with this high-performance L5P CCV Upgrade Kit, designed to solve common failure issues and improve engine reliability for your 2017–2026 Duramax.\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhat Is the CCV System?\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe CCV (Crankcase Ventilation) system is responsible for extracting combustion gases that escape past the piston rings and collect in the crankcase. On the L5P Duramax, the CCV system is integrated into the valve cover and connects to the intake air horn. This setup uses Bernoulli’s Principle to create vacuum and route crankcase gases back through the intake for reburning — a requirement for emissions compliance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eOver time, especially in higher-mileage diesels, excessive blow-by causes oil vapors to be carried into the turbocharger inlet. The engine consumes this oil, which can lead to carbon buildup and reduced efficiency.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhy Upgrade?\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe factory CCV system on the L5P is made of plastic and is known to crack or fail over time, allowing boost pressure and hot charge air to enter the intake system improperly. Additionally, the OEM system is non-serviceable — if it fails, the entire driver-side valve cover must be removed, requiring fuel line and injector removal, often totaling 6+ hours of labor.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis upgrade kit eliminates that problem entirely and offers several key improvements:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eKey Features \u0026amp; Benefits:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eDirect replacement for the factory CCV system\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDurable construction — eliminates weak factory plastic prone to cracking\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eIntegrates dual passive oil separation stages\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eUses proven differential drop technology from marine and heavy-duty diesel applications\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eHelps keep intake components free of oil and carbon buildup\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cli\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eRelocates oil fill port to the front of the engine using a billet standpipe\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eTall enough to clear engine accessories\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMakes filling oil easier, especially with gallon jugs\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cli\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSeparates oil fill from CCV system for improved safety and cleanliness\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eReduces oil ingestion into the turbocharger and intake manifold\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eNo tuning required — completely passive system with no moving parts\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eInstallation:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eInstall Time: 30–45 minutes\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMounting: Reuses the 4 factory safety lock screws for secure fitment\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eNo special tools required\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eNo tuning or calibration changes needed\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhy We Designed It:\u003c\/span\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cspan\u003eTo eliminate failure-prone factory components.\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003eThe stock CCV cannot be serviced, making repairs expensive and time-consuming. This kit eliminates that hassle.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eTo improve maintenance and usability.\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003eRelocating the oil fill makes engine service easier and cleaner, especially in performance or work applications.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCompatibility:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eFits: 2017–2026 L5P Duramax (Silverado \u0026amp; Sierra 2500HD\/3500HD)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eTurbo Setup: Compatible with all factory and most aftermarket configurations\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"H2 Supply Co","offers":[{"title":"Default Title","offer_id":48264875442430,"sku":null,"price":235.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0809\/8008\/2942\/files\/IMG-1201.webp?v=1779838435"},{"product_id":"3-5-turbo-intake-horn-2020-2025-l5p-duramax-factory-style-turbo","title":"3.5” Turbo Intake Horn | 2020–2025 L5P Duramax (Factory-Style Turbo)","description":"\u003cp\u003eUpgrade your 2020–2025 L5P Duramax with this high-flow 3.5” Turbo Intake Horn, designed specifically for trucks running the factory-style turbo. This bolt-on upgrade improves airflow by eliminating the restrictive section found in the stock intake horn just before the turbo inlet — all without the need for tuning.\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhether you’re running the OEM intake or an aftermarket intake system, this intake horn is a direct-fit solution that enhances throttle response and turbo efficiency.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eKey Features:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eNo tuning required — plug-and-play installation\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eImproves airflow to the turbo by removing factory restrictions\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCompatible with OEM or aftermarket intake kits\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFits stock trucks — no other modifications needed\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDurable 3.5” construction for maximum flow and performance\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePerfect for daily drivers, tow rigs, or performance builds looking to unlock better airflow without complicating the setup.\u003c\/span\u003e\u003c\/p\u003e","brand":"H2 Supply Co","offers":[{"title":"Raw","offer_id":48264875475198,"sku":null,"price":160.0,"currency_code":"USD","in_stock":true},{"title":"Black","offer_id":48264875507966,"sku":null,"price":165.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0809\/8008\/2942\/files\/IMG-1187.jpg?v=1779838433"},{"product_id":"l5p-17-25-turbo-anti-surge-ring","title":"L5P 17-25 Turbo Anti Surge Ring","description":"\u003cp\u003eTURBO COMPRESSOR HOUSING NOT INCLUDED! PICTURE IS JUST FOR DEMONSTRATING A STOCK TURBO HOUSING\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eL5P Intake Horn Anti-Surge Ring (2017–2025 Silverado\/Sierra 2500HD \u0026amp; 3500HD)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eUnlock better performance and turbo protection with the L5P Intake Horn Anti-Surge Ring — the perfect addition to your 2017–2025 Silverado or Sierra 2500\/3500 with the L5P Duramax.\u003c\/p\u003e\n\u003cp\u003eThis ring is designed to work seamlessly with the WC Fab Open Intake Horn, which we highly recommend for all turbo configurations. By increasing airflow and eliminating restrictive factory design, this upgrade helps prevent turbo surge — a common issue that can lead to long-term damage.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThe stock intake horn necks down just before the turbo, creating a low-pressure zone that reduces turbo efficiency, especially under heavy load. Installing this Anti-Surge Ring ensures smoother, more efficient airflow, maximizing turbo performance and durability.\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eKey Benefits:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003ePrevents turbo surge and potential damage\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eIncreases airflow and turbo efficiency\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eEliminates factory intake restriction\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eIdeal match but not limited to WC Fab Open Intake Horn\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCompatible with all turbo setups on 2017–2025 L5P Duramax\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/p\u003e","brand":"H2 Supply Co","offers":[{"title":"Default Title","offer_id":48264875540734,"sku":null,"price":105.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0809\/8008\/2942\/files\/IMG-1196.jpg?v=1779838434"},{"product_id":"l5p-in-person-service","title":"L5P IN-PERSON SERVICE","description":"\u003cp\u003eWhat’s Included?\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIN PERSON service \u0026amp; repair anywhere in the United States minus Hawaii or Alaska\u003c\/li\u003e\n\u003cli\u003eL5P DOWNPIPE 3.5”\u003c\/li\u003e\n\u003cli\u003e4” race pipe Stainless or 5” Exhaust Stainless\u003c\/li\u003e\n\u003cli\u003e0-220HP Custom Files SOTF\/SINGLE\u003c\/li\u003e\n\u003cli\u003eEGR Solution\u003c\/li\u003e\n\u003cli\u003eCan Bus Plugs\u003c\/li\u003e\n\u003cli\u003eCoolant Re-Route\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAll parts will be shipped to your address provided prior to making the trip to you! Once all parts have arrived we will contact you to pick a day to service your L5P. Please allow 3 days max to finish the truck. These typically take 1 day but weather can be unpredictable and work conditions could be affected ! \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"H2 Supply Co","offers":[{"title":"Default Title","offer_id":48264875835646,"sku":null,"price":8990.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0809\/8008\/2942\/files\/5D808EB9-32BE-4B51-8C83-3AC2C0BE2A0C.png?v=1779838454"},{"product_id":"17-23-l5p-tcm-tuning-ezlynk-tuning","title":"17-23 L5P TCM TUNING EZLYNK TUNING","description":"\u003cp\u003eEZ Lynk Transmission Tuning — 2017–2023 L5P Duramax\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eAfter purchase, you’ll receive a follow-up email to submit the personalized vehicle information required to complete your order.\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eModel Coverage\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e2017–2019 → T87A TCM\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e2020–2023 → T93 TCM\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eDevice Requirement:\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eEZ Lynk Auto Agent is required and sold separately.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eTCM Unlock Requirement\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eBoth T87A and T93 transmission control modules must be unlocked before custom transmission tuning can be installed.\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThe unlock and tuning process is completed through EZ Lynk when flashing your custom file.\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFULL CUSTOM TRANSMISSION TUNING + LIFETIME SUPPORT\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eOur L5P transmission tuning is engineered for trucks that work hard and make power.\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eWhether you tow heavy, daily drive, or run a high-horsepower setup, this tuning improves how your transmission handles load, power, and heat.\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eBenefits Include:\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e✔ Improved shift quality\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e✔ Better towing performance\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e✔ Increased clutch holding capacity\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e✔ Reduced transmission stress\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e✔ Smoother drivability\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e✔ Increased transmission longevity\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e✔ Optimized performance for stock or modified trucks\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eBuilt for reliability, drivability, and power handling — this is the upgrade your L5P transmission needs to perform the way it should.\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"H2 Supply Co","offers":[{"title":"4weeks","offer_id":48264875933950,"sku":null,"price":405.0,"currency_code":"USD","in_stock":true},{"title":"Lifetime","offer_id":48264875966718,"sku":null,"price":495.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0809\/8008\/2942\/files\/image0_1.webp?v=1779837422"},{"product_id":"2017-2023-l5p-engine-tuning-ezlynk","title":"2017-2023 L5P Engine Tuning EzLynk","description":"\u003cp\u003eLifetime and 4 Week support Options! \u003c\/p\u003e\n\u003cp\u003eEZ LYNK SOLD SEPARATELY!\u003c\/p\u003e\n\u003cp\u003e0-220 HP LEVELS ON STOCK FUEL AND TURBO \u003c\/p\u003e\n\u003cp\u003eSINGLE and SOTF options will come supported in either package\u003c\/p\u003e\n\u003cp\u003e**special functions such as hiss, lope, rumble, hard cut limiters, Low boost fueling, aggressive timing are included in both options**\u003c\/p\u003e\n\u003cp\u003e** \u003cspan\u003eBig turbo, mod VGT, non VGT, big fuel injectors, major modifications, non stock engine will only be supported with lifetime support**\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIf you have questions please feel free to contact us \u003c\/p\u003e\n\u003cp\u003eCab and Chassis and Fleet sides are supported \u003c\/p\u003e\n\u003cp\u003eThis product is not for Kodiak\/International L5D trucks.\u003c\/p\u003e\n\u003cp\u003eCan-Bus plugs are still required.\u003c\/p\u003e\n\u003cp\u003eWe will be sharing a dash message reset file that has instructions for it's use if you have a dash message after tuning.\u003c\/p\u003e\n\u003cp\u003eModifications such as: FASS, CP3, different turbo options will need to be built per truck, so email us if your truck fits one of these situations\u003c\/p\u003e\n\u003cp\u003eYou will receive a follow up email message after placing order to fulfill your vehicles needs. \u003c\/p\u003e","brand":"H2 Supply Co","offers":[{"title":"4 Weeks","offer_id":48264875999486,"sku":null,"price":880.0,"currency_code":"USD","in_stock":true},{"title":"Lifetime","offer_id":48264876032254,"sku":null,"price":1150.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0809\/8008\/2942\/files\/Screenshot2026-05-20143501_d3289c81-82a8-48ee-a250-8026571fc540.png?v=1779837425"},{"product_id":"17-23-l5p-transmission-tuning-t93-t87a","title":"17-23 L5P Transmission Tuning T93 T87A","description":"\u003cp\u003e\u003cspan\u003eYou will receive a follow-up email after purchase to complete your order with your personalized information.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e17–19: T87A\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e20–23: T93\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eHP Tuners Transmission Tuning for your 2017–2023 L5P Duramax\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eHP Tuners sold separately!\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eBoth T87A and T93 TCMs must be unlocked before custom tuning can be flashed.\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFULL CUSTOM TUNING with LIFETIME SUPPORT\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eMaximize the performance and lifespan of your L5P transmission with our custom tuning service. Perfect for heavy towing and high-horsepower applications, our expertly designed tuning optimizes your transmission for peak efficiency. Enjoy increased longevity, improved drivability, and enhanced overall performance with our L5P transmission tuning.\u003c\/span\u003e\u003c\/p\u003e","brand":"H2 Supply Co","offers":[{"title":"4 Weeks","offer_id":48264876884222,"sku":null,"price":405.0,"currency_code":"USD","in_stock":true},{"title":"Lifetime","offer_id":48264876916990,"sku":null,"price":495.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0809\/8008\/2942\/files\/HPTCMTUNINGV2.webp?v=1779838518"}],"url":"https:\/\/h2supplyco.com\/collections\/chevy-gmc.oembed","provider":"H2 Supply CO","version":"1.0","type":"link"}