E46 ECM Service is Now Available!
HP Tuners is thrilled to now offer *exclusive* custom tuning/diagnostics 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 first for diagnostics and tuning
using VCM Suite.
Click HERE to see all the details on our website!