Instruction Sheets for Part Number HPT-ECM-00-L5P-K
ECM Upgrade, Duramax, L5D, L5P, Chevy, GMC, Kit
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Estimated Ship Date: Monday 10/19/2026 Would you rather pick it up?
Overview
HP Tuners ECM Upgrade Kits
HP Tuners ECM Upgrade Kits will give do-it-yourself enthusiasts and professional tuners a convenient option to perform the ECM upgrade on their 2017+ Chevy Silverado/GMC Sierra 6.6L Duramax in their own garage/shop. The best part? There's no need to remove the ECM from the truck. This means there's no risk of breaking tabs during the removal or reinstallation process, and the kit doesn't require any reprogramming or relearns. From start to finish, you can upgrade your E41 ECM in roughly 20 minutes—all you need is this upgrade kit, your MPVI2+ with Pro Feature Set or MPVI3 device with its supplied USB A to C cable, and a VCM Suite-compliant computer with the latest version of VCM Suite BETA. Once the ECM is upgraded, you'll experience the industry's most comprehensive diagnostics and tuning package using VCM Suite with full scan, data log, read, edit, and write capabilities. Plus, you'll experience the quickest write times in the industry in approximately 6 minutes!
Product features and benefits:
* No IMMO relearn
* No crank relearn
* No need to perform "Replace ECM" function
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Some parts are not legal for use in California or other states with similar laws / regulations
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