GMC Denali 2500 this is fully loaded (only missing sunroof) truck up graded with cold air intake, air hog fuel pump booster, five-inch exhaust, GDP EFI Live tuning and an Edge II in cab display. Full size truck mirrors installed, and the badging and door handles changed to black. The Duramax logo on the hood has the EFI logo. Tuning for the truck has only be run on economy mode for fuel savings. Truck is getting 18.3 mpg on average. The truck is prewired for Escort 360 with mute button (Escort can be purchased in addition to price).