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20-23 TCM Tune and HP Tuners credits
FlashScan V3 and Autocal V3 customers may purchase additional VIN licenses to tune extra controllers
Cores that have missing and/or damaged component(s) will not receive credit
*****Aftermarket downpipe recommended for easier installation
Integrated accessory system for additional gauges or can control switches for lighting
L5P E41 ECM Upgrade Kit Exhaust 20-23 TCM Tune and HPConveniently 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 Suite software using an MPVI2+ (with Pro Feature Set) or MPVI3 interface. The new E41 ECM Upgrade Kit gives DIY enthusiasts and professional tuners a
