Unlocking more horsepower and torque from your diesel trucks has never been easier than with a plug- in performance tuner from EGR Parts. Our diesel tuners can be installed in just minutes and offer you the biggest performance gains for your dollar. Diesel tuners, including chips, modules, and programmers, all work by interfacing with your Powerstroke, Duramax, Cummins engine management computer. The stock fueling parameters, such as injection timingboost pressure and fuel rail pressure, are then modified to free up hidden power and efficiency from your motor. Not only will you have more power and less downshifting, you’ll also have more complete combustion resulting in more power and torque.