2016-2022 2.8L Duramax MPVI3 w/ GDP Custom Tuning

Fits

*IMPORTANT* 

2016 Includes MPVI3 Device & 2 Credits

2017-2022 Includes MPVI3 Device & 4 Credits

If you're going to get custom tuning for your Duramax, you want to make sure you get tunes from one of the best; let us know what your upgrades and preferences are, and then we will have the tunes written to accommodate any modifications your truck may have. 

Part Number: GDP401C/ GDP402C

• Single Tune or SOTF 
  
• Written specifically for Your Truck
• Emissions On or Off 
• 4 credits is enough to flash your ECM & TCM

What is Tuning?

By custom tuning a truck, you are given the ability to modify countless parameters to the engine and transmission operation that OEMs had to produce the stock tunes you started with. The number one reason customers choose to tune their trucks is fuel economy.

Just by changing the rate of the burn inside the combustion chamber and removing EGR gases (if applicable) from the burn we can extract more energy out of the fuel than was otherwise possible. By extracting more energy out of the fuel we get increased fuel mileage as less fuel is required and an increase of power.  

Different power levels can be written under request and/or depending on modifications to the vehicle. As all tune files are custom; this will give you a general idea of what you could or can get.

• Level 1 0 HP
• Level 2 60 HP

Click here to view MPVI Tuning instructions