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.

Handheld tuners by Edge Products offer plug-and-play performance tuning and monitoring capabilities. With powerful preloaded tunes, intuitive color display, and comprehensive diagnostics, these versatile devices help you optimize horsepower, torque, fuel efficiency, and drivability across a wide range of trucks and SUVs.