Gasoline Engine: Tunes are based on Octane, make sure you choose the correct octane rating based on the octane you are running in your vehicle.
87 Octane
91 Octane
93 Octane
Diesel Engines: We offer a few tunes based on what you’re going to be doing with your truck.
Performance: The most aggressive preloaded diesel tune. Good for everyday use, racing, or economy but not recommended for any type of towing.
Street: Less power than Performance. Moderate gain over stock, safe for light towing, under 5k lbs.
Tow: Should be used when towing any significant load. Shifting is towing centered