40420Regular price $449.00 Save $-449.00
The GT Diesel tuners unlock more horsepower & torque to meet the unique demands you put on your vehicle. With preloaded tuning you can plug ‘n play. The built in “Driving Coach” feature helps improve driving habits for better fuel mileage. Customizable gauges track performance, and a wide variety of hauling and offroading, all while giving you plenty of power to take on tough jobs or improved fuel economy for long highway hauls.
*Duramax LML and LGH are not shift on the fly.