It's no secret that aftermarket tuning can give your diesel truck huge levels of horsepower and torque over stock, and our friends over at EFI Live offer some of the best and most powerful tuning on the market for full-size diesel trucks. EFI Live's FlashCan tuning devices are extremely easy to use and makes it a breeze to get more horsepower and torque out of your aggressive diesel truck build. EFI Live has Duramax tuning and Cummins tuning in several different formats and power levels so that you can get the perfect tune for your application.