Get your 2017+ Chevrolet Silverado and GMC Sierra 2500/3500 6.6L Duramax ready for tuning with HP Tuners E41 ECM Upgrade service. Upgrade your original E41 ECM for tuning and diagnostics via this send-in, one-time service. Simply send HP Tuners your original E41 ECM and we'll upgrade it for tuning and diagnostics.
This Part Fits:
| Year |
Make |
Model |
Submodel |
| 2021-2022 |
Chevrolet |
Silverado 2500 HD |
Custom |
| 2017-2022 |
Chevrolet |
Silverado 2500 HD |
High Country |
| 2017-2022 |
Chevrolet |
Silverado 2500 HD |
LT |
| 2017-2022 |
Chevrolet |
Silverado 2500 HD |
LTZ |
| 2017-2022 |
Chevrolet |
Silverado 2500 HD |
WT |
| 2017-2022 |
Chevrolet |
Silverado 3500 HD |
High Country |
| 2017-2022 |
Chevrolet |
Silverado 3500 HD |
LT |
| 2017-2022 |
Chevrolet |
Silverado 3500 HD |
LTZ |
| 2017-2022 |
Chevrolet |
Silverado 3500 HD |
WT |
| 2020-2022 |
GMC |
Sierra 2500 HD |
AT4 |
| 2017-2021 |
GMC |
Sierra 2500 HD |
Base |
| 2017-2022 |
GMC |
Sierra 2500 HD |
Denali |
| 2022 |
GMC |
Sierra 2500 HD |
Pro |
| 2017-2022 |
GMC |
Sierra 2500 HD |
SLE |
| 2017-2022 |
GMC |
Sierra 2500 HD |
SLT |
| 2020-2022 |
GMC |
Sierra 3500 HD |
AT4 |
| 2017-2021 |
GMC |
Sierra 3500 HD |
Base |
| 2017-2022 |
GMC |
Sierra 3500 HD |
Denali |
| 2022 |
GMC |
Sierra 3500 HD |
Pro |
| 2017-2022 |
GMC |
Sierra 3500 HD |
SLE |
| 2017-2022 |
GMC |
Sierra 3500 HD |
SLT |
