aFe Aries Powersport OE Replacement Air Filter w/ Pro DRY S Media (81-10068) 1780 Metric M12 to 3/8 Inch

Metric M12 to 3/8 Inch Hose Barb 90-Degree Fitting w/ 1/8 Inch Venturi Port

This system includes a TPS Wide Open Throttle Switch so the nitrous only activates at wide open throttle and automatically turns off when you decelerate

Vehicle Application: Subaru 2008-2017 WRX / STI

separate rebound and compression adjustment and a twin piston design

Constructed from a single-piece carbon fiber sheet for consistent weave and strength

aFe Aries Powersport OE Replacement Air Filter w/ Pro DRY S Media (81-10068) 1780 Metric M12 to 3/8 InchPro DRY S Filter Media: This filter features three layers of oil free synthetic media and requires no oil during maintenance to provide maximum convenience. Its progressive layering provides great filtration efficiency and dust holding capacity. This media is best suited for street use. Pro DRY S filters are easily recharged with aFe's POWER CLEANER. Clickherefor more information about our filter media. Rounded Deep Open Pleats: aFe POWER performance