Description
GiroDisc Front Rotors Slotted Pair Subaru STI 2018 2021 A1 185 Wheel Offset_30mm the system has shown gains the system has shown gains of up to 34ft lb of torque at the wheels and 22whp when tested using a Stage 1 Off The Shelf tune as the baseline dyno pull This twisting action is known as torsional vibration