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The Cobb catback connects at the factory downpipe flange and bolts to the factory exhaust hanger locations on the GD WRX/STI
These days it’s almost more uncommon to find a 2015+ Subaru WRX owner that isn’t looking to push more boost through their FA20DIT and give their morning commute a little more zest
Cold formed from high strength aircraft grade steel
then drains gradually into the engine's crankcase
Killer B FA20 MV3S Air Oil Separator - 2015-2021 Subaru WRX Subaru-BRZ-2019 The Cobb catback connects atThe Killer B Motorsports Complete Air Oil Separator System has been designed to keep harmful oil contaminants from entering the intake system of the FA20. This component will remove oil in both liquid and vapor form from the vented crankcase gasses, and it functions with a vacuum source on the turbo inlet. Turbo size will not affect the function of this air oil separator. Killer B FA20 WRX Air Oil Separator SPECS: Billet and TIG welded 6061 T6