{"product_id":"2021-2025-duramax-3-0l-hp-tuners-e66-ecm-global-b-unlock-service-ecm-gb-e66-u","title":"2021-2025 Duramax 3.0L HP Tuners E66 ECM Global B Unlock Service (ECM-GB-E66-U)","description":"\u003cp\u003e\u003cstrong\u003e2021-2025 Duramax 3.0L HP Tuners E66 ECM Global B Unlock Service (ECM-GB-E66-U)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eHP Tuners is now offering support for the GM Global B E66 ECM found in various 2021+ GM vehicles powered by the 3.0L Duramax engine (LM2 and LZ0 generations, models listed below). This one-time, send-in upgrade service is required to capabilities in VCM Suite (BETA).\u003c\/p\u003e\n\u003cp\u003eShipping address for send-in E66 ECM service (Global B): HP Tuners (ATT: GM E66 ECM Service [Global B]), 711 Dartmouth Lane, Buffalo Grove, IL 60089\u003c\/p\u003e\n\u003cp\u003eThis is a send-in service which means you must first send us your original ECM. Please read this page in its entirety before purchasing.\u003c\/p\u003e\n\u003cp\u003eThis one-time service upgrades your original E66 ECM (Global B generation only) and is required for tuning using HP Tuners’ software. Users must physically remove their original E66 ECM from their vehicle and ship it to HP Tuners’ headquarters for servicing. Once upgraded, users have full access to calibrate, log, and scan via the OBDII port.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eNo need for an IMMO Relearn, Crank Relearn, or to perform the “Replace ECM” Function in VCM Scanner on the stock ECM.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eEverything you need to tune your E66 ECM vehicle with HP Tuners:\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003eThis one-time, send-in GM E66 ECM Service (Global B) (upgrade service).\u003c\/li\u003e\n\u003cli\u003eDownload\u003cspan\u003e \u003c\/span\u003ethe latest version of VCM Suite BETA for free.\u003c\/li\u003e\n\u003cli\u003eOnce upgraded, purchase (6)\u003cspan\u003e \u003c\/span\u003eUniversal Credits\u003cspan\u003e \u003c\/span\u003eto license your E66 ECM\/vehicle.\u003c\/li\u003e\n\u003cli\u003eGM Global B vehicle support is only compatible with our MPVI3 or\u003cspan\u003e \u003c\/span\u003eMPVI4\u003cspan\u003e \u003c\/span\u003einterface.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"PML Engines","offers":[{"title":"Default Title","offer_id":49197041189115,"sku":"ECM-GB-E66-U","price":1169.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0576\/3298\/1184\/files\/ProductImage-2026-08-18T083309.619.png?v=1787151282","url":"https:\/\/www.ocdiesel.ca\/products\/2021-2025-duramax-3-0l-hp-tuners-e66-ecm-global-b-unlock-service-ecm-gb-e66-u","provider":"OCDiesel","version":"1.0","type":"link"}