GDP Tuning R1116DGP EFI Live Autocal TunerEFILive 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 locked inside of your truck.
2011-2016 6.6L Duramax tuning comes as 5 separate files. To change power levels you must re-program your vehicle with the AutoCal.
Your tuner comes with the 4 positions (after tunes are written by GDP) below.
Position #1 NO POWER +20HP
Position #2 TOW +50HP
Position #3 STREET +75HP
Position #4 PERFORMANCE +130HP
How it works:
Unit ships with easy to follow instructions to get you truck specific tunes. You get a login, password unique order number to use on the GDP website. You will be directed to an online portal where you will be asked for information about your truck. You will need a VIN number, truck modifications and other vital tuning information. Once this form is submitted the pro GDP tuners will then start building your tunes.
Within 48 hours during normal business days you will receive your tunes to download.