HP Tuners exclusively presents our L5P Modified ECM Purchase & ECM Exchange Service, giving you the power to tune your 2017+ Chevrolet Silverado / GMC Sierra 2500/3500 6.6L Duramax. You now also have the option to either purchase a new HP Tuners Modified ECM or send us your original ECM and we will exchange it for a HP Tuners modified one. Both options give you full access to calibrate, log and scan via the OBD2 port with your MPVI2 and VCM Suite 4.3+!
L5P Modified ECM Purchase
This option allows you to purchase an already Modified ECM from us, and you keep your original ECM. Remember, do NOT send us your ECM.