Conveniently upgrade your E41 ECM, found in the 2017+ Chevy Silverado and GMC Sierra 2500/3500 6.6L Duramax trucks (L5P and L5D applications), without removing it from the vehicle. Upgrade your E41 ECM in 20 minutes or less! This ECM upgrade kit enables read, write, and special functions in VCM..
MPVI3 by HP Tuners, the fastest and most sophisticated OBDII
interface device to date. Now standard with Pro Feature Set (PROLINK+ cable sold separately).
Pro is the new standard with MPVI3. Take advantage of Pro
Feature Set capa..