NRG Ball Type Shift Knob Weighted - NeoChrome - SK-350MC Adjustable Fuel Pressure Regulator Tuner Stage 1s require a

Tuner Stage 1s require a simple valve spring and retainer upgrade due to the additional lift

FEATURESSubaru SF Intake System WRX 2015-2021Integrated Velocity Stack MAF HousingBlack Powdercoated Airbox with COBB BadgePre-Oiled Cone FilterCompatible with COBB "+SF" OTS Maps

The design is suitable for professional racing with its increased thigh and hip support along with extended shoulder and rib bolsters for extra containment

Extreme Race 88A urethane is very stiff for almost total control of the engine movement

whether you drive your 2015 WRX daily or take it for track runs

NRG Ball Type Shift Knob Weighted - NeoChrome - SK-350MC Adjustable Fuel Pressure Regulator Tuner Stage 1s require aBALL TYPE SHIFT KNOBS WEIGHTED Classic ball style shift knob, universal, stylish, and ready to slam some gears. 54mm diameter . 70 lbs Universal threaded inserts NRG Innovations Products are designed for off road use only. Keep it on the track.