{"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","url":"https:\/\/h2supplyco.com\/products\/2024-2026-gm-duramax-l5p-global-b-hp-tuners-gm-e42-ecm-upgrade-service","provider":"H2 Supply CO","version":"1.0","type":"link"}