The GMT800 HD trucks were a massive step forward for GM's truck division. The available engines included the LS-based 6.0L, the big block 8.1L, and the line-topping 6.6L LB7, LLY, or LBZ Duramax diesel. Whether gas or diesel, we have the parts to take your truck to the next level on the street, worksite, or drag strip.

Take control of your vehicle’s accelerator with Edge Products throttle boosters featuring wireless throttle sensitivity adjustment. With the Amp’d 2.0, you can fine-tune pedal response on-the-fly or build a fully custom throttle curve right from the Android/iOS mobile app—perfect for eliminating lag, improving drivability, and dialing in performance for towing, off-road, or street use.