GM E46 ECM Service

HPtuners is thrilled to now offer industry-exclusive custom tuning support for the E46 ECM found in 2020-2022 Chevrolet Silverado 1500/GMC Sierra 1500 3.0L Duramax (LM2) trucks (non-Global B vehicles). The E46 ECM must be upgraded in order to use VCM Editor for tuning. Own a 2020+ GM vehicle and need the T93 TCM unlocked, too? See our T93 TCM Services! Shipping address for send-in E46 ECM services: HP Tuners (ATT: E46 ECM Service), 700 Eastwood Ln, Buffalo Grove, IL 60089   Tune your 2020-2022 3.0L Duramax Truck with HP Tuners HP Tuners is thrilled to offer exclusive custom tuning capabilities for the GM E46 ECM. This ECM is found in 2020-2022 Chevrolet Silverado 1500/GMC Sierra 1500 3.0L Duramax (LM2) diesel trucks (non-Global B) and requires this service in order to tune the ECM using VCM Editor. This one-time upgrade service upgrades your original E46 ECM. This requires you to remove the original ECM from your truck and send it to our headquarters for servicing. After upgrading, we’