2007.5 - 2021 EFI LIVE or HP TUNERS 6.7 CUMMINS CUSTOM TUNING SUPPORT PACKAGE:4WEEKS 5 GMC Sierra 2500HD 3500HD

5 GMC Sierra 2500HD 3500HD Duramax 6

REQUIRES CCV STYLE TUNING TO OPERATE

hard cut limiters

We can apply partial credit from this purchase toward that upgrade

2007.5 - 2021 EFI LIVE or HP TUNERS 6.7 CUMMINS CUSTOM TUNING SUPPORT PACKAGE:4WEEKS 5 GMC Sierra 2500HD 3500HD07. 5 21 CUMMINS 6. 7L POWER LEVELS (SOTF SINGLE) 0 220 HP VGT NONVGT OPTIONS TUNING ONLY!! DOES NOT INCLUDE FLASH DEVICE FREE RETUNES IF OPTIONED (SOTF OPTION ALSO SUPPORTS SINGLE TUNES) Special Functions such as LOPE, Limiters, Hiss, Rumble, 12V idle etc! Only included in lifetime support. WILL NOT COME WITH 4weeks! You will receive a follow up email shortly after purchase Transmission Tuning Features ( FULLY CUSTOMIZABLE ) Earlier Converter Lockup