Duramax Lifetime Supporter
Join Date: Jan 2012
Sounds like an ECM exchange so I would suggest buying a new spare one and sending that to them. Keep the original cause ya never know. So a little more expensive than a unlock but shouldn't be too pricey
"Simply send us your ECM (or a new spare one) and we will exchange it for a HP Tuners modified ECM giving you full access to calibrate, log and scan with your MPVI2 and VCM Suite 4!"
2006 LBZ CCSB Tuned & Deleted, Black
2017 L5P LTZ Custom Sport Edition Z71, Black
1969 Camaro Convertible, Aluminum 540 BBC