Calibrated for racing and sport, the fully-engineered Six-Gun diesel tuner delivers an unmatched combination of power, safety, and versatility, as well as best gains of 105 HP* and 258 ft/lbs TQ* at the rear wheels. Six-Gun has 6 change-on-the-fly power levels; Stacked for Power® to tune pulse width, timing, and fuel pressure; and AutoRate® and ActiveSafety® engine and transmission safeguards.

Speed-Loader
When you upgrade a Six-Gun by adding a Speed-Loader, you get temperature-limiting control to further protect your engine (use of a pyrometer is highly recommended), and best gains improve to 126 HP* and 290 ft/lbs TQ* at the rear wheels.

*Horsepower and torque ratings vary on application (listed in More Info below)