GM E41 ECM Upgrade Kit
Upgrade Your E41 ECM Right in the Garage/Shop
The new E41 ECM Upgrade Kit gives DIY 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.
This kit also doesn’t require any reprogramming or relearns.
- No IMMO relearn
- No crank relearn
- No need to perform “Replace ECM” function