{"product_id":"hp-tuners-gm-e46-ecm-service","title":"HP Tuners GM E46 ECM Service","description":"\u003cp\u003eHP Tuners’ one-time send-in upgrade service for the E46 ECM found in supported 2020–2022 Chevrolet Silverado 1500 and GMC Sierra 1500 3.0L Duramax LM2 trucks that are not Global B.\u003c\/p\u003e\u003ch2\u003eSupported Applications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e2020–2022 Chevrolet Silverado 1500 3.0L Duramax (LM2), non-Global B\u003c\/li\u003e\n\u003cli\u003e2020–2022 GMC Sierra 1500 3.0L Duramax (LM2), non-Global B\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eRequirements\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eOriginal E46 ECM\u003c\/li\u003e\n\u003cli\u003e6 \u003ca href=\"https:\/\/powerlabstuning.com\/products\/hp-tuners-universal-credits\" title=\"HP Tuners Universal Credits\"\u003eHP Tuners Universal Credits\u003c\/a\u003e, sold separately\u003c\/li\u003e\n\u003cli\u003eMPVI2 or newer HP Tuners interface\u003c\/li\u003e\n\u003cli\u003eLatest VCM Suite BETA\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eService Notes\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eNo IMMO relearn, crank relearn, or Replace ECM function is required when the upgraded original ECM returns to the same vehicle.\u003c\/li\u003e\n\u003cli\u003eECMs with damaged locking tabs or connectors are not accepted.\u003c\/li\u003e\n\u003cli\u003eThe service upgrades the ECM for tuning and does not reprogram it for a different VIN.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eShipping\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eHP Tuners, LLC\u003cbr\u003eATT: E46 ECM Service\u003cbr\u003e[YOUR ORDER NUMBER]\u003cbr\u003e711 Dartmouth Lane\u003cbr\u003eBuffalo Grove, IL 60089\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eInclude the \u003ca href=\"https:\/\/files.hptuners.com\/pub\/2026\/05\/US-Generic-Shipping-Form-2026-V2.pdf\" title=\"HP Tuners Controller Upgrade Service Shipping Form\"\u003eHP Tuners Controller Upgrade Service Shipping Form\u003c\/a\u003e. Customers are responsible for inbound shipping; checkout shipping covers return shipment after modification.\u003c\/p\u003e","brand":"HP Tuners","offers":[{"title":"Default","offer_id":62856278638751,"sku":"ECM-00-E46-U","price":399.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1861\/0255\/files\/hp-tuners-gm-e46-ecm-service_b0aa89d1-b7bb-4ab3-b2df-25486407b4b4.jpg?v=1787978983","url":"https:\/\/powerlabstuning.com\/products\/hp-tuners-gm-e46-ecm-service","provider":"PowerLabs Dyno \u0026 Tuning","version":"1.0","type":"link"}