HKS Fuel Cut Defenser

HKS's FCD is an electronic device developed to properly raise the factory fuel cut level on your WRX CAR to a safe and higher predetermined point.

As modifications such as intakes and exhausts are made to optimize engine performance along with utilizing a boost controller to further raise boost levels, the conservative factory fuel cut is often triggered by the higher boost levels which activates a fuel delivery cut off as a failsafe procedure.