GDP EFI Live and Custom Tunes (2011-2016) - Chevy 6.6L

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  • $ 949.99


EFILive tuning for the 2011-2016 Duramax is now available to meet your desired horsepower gains. Each AutoCal will come with 5 tunes. When you purchase a GDP Tuning AutoCal you will be ready to unleash the beast that’s is locked inside of your truck.

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

2011-2016 POWER LEVELS

Switch Position

Power Level Name

HP Rating

Position #1 NO POWER +20HP
Position #2 TOW +50HP
Position #3 STREET +75HP
Position #4 PERFORMANCE +130HP
Position #5 RAMPAGE +230HP

*RAMPAGE REQUIRES A LIFT PUMP IN ORDER TO SEE THE FULL 230HP INCREASE.