2011 - 2016 Duramax LML GDP Tuning EFI Live Tune Pack


Regular price $500.00 Save $-500.00
97 in stock
EFILive tuning for the 2011-2016 Duramax is now available to meet your desired horsepower gains.

2011-2016 6.6L Duramax tuning comes as 5 separate files. To change power level you must re-program your vehicle with the AutoCal.