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.

Wet nitrous systems are the most popular option since they provide the extra fuel to support the added nitous, and don't require any modifications to the fuel injection system (no custom programming of the computer to add fuel when the nitrous is activated). Dry nitrous systems are generally used in racing applications in combination w/ the HP or Dominator ECU w/ custom calibration to add the extra fuel using the fuel injectors (in an EFI application).