Copy and paste into Discount Code box at payment screen.
The Product You Are Adding To Cart is Made For
The Derringer calibration is continuously adjusting to provide peak performance under every driving condition. By utilizing the power of the OBD-II data, the tuner intelligently fine-tunes its calibration on the fly without you having to change its power level.
The Derringer is calibrated to modulate power during shifting while ramping up hydraulic pressure for better engagement. Competitors lack OBD-II data and always add power at wide-open throttle causing excessive transmission, clutch, and torque converter slip.
The Derringer is the only tuner available that includes Active Safety® health monitoring circuitry.