2017 - 2018 L5P GM E41 ECM Upgrade Kit | L5P Unlock Cable FBP this kit enables full tuning

this kit enables full tuning capability—without ever removing your controllers from the vehicle

Auto 68RFE

Does not work with Cab and chassis trucks

2018+ Cummins REQUIRES A BYPASS CABLE

and diagnostic device built for serious diesel truck owners

2017 - 2018 L5P GM E41 ECM Upgrade Kit | L5P Unlock Cable FBP this kit enables full tuning**In stock and ready to ship** HP Tuners, the leading automotive diagnostics and calibration solution, has released a new GM E41 ECM Upgrade Kit allowing professional tuners to upgrade E41 ECMs found in 2017+ Chevrolet Silverado and GMC Sierra 2500 3500 6. 6L Duramax trucks (L5P and L5D applications) in the convenience of their own shops. By design, this kit eliminates the need to remove the original E41 ECM from the vehicle and thus potentially