Precision Works AOS Air Oil Separator - Subaru WRX 2015-2021 Color:Red Core dimension: 430mm (16

Core dimension: 430mm (16

Air to air intercooler core

Comes standard with high flow catalytic converter

making the welds stronger and more durable

The exhaust comes with 3 silencer fittings so you can adjust the tone to your liking while on the street or at the track

Precision Works AOS Air Oil Separator - Subaru WRX 2015-2021 Color:Red Core dimension: 430mm (16Precision Works AOS Air Oil Separator Subaru WRX 2015 2021 Air oil separator removes oil from engine ventilation system so the oil does not get into the intake system. Key Features: Retains OEM PCV valve Engine performs cleaner & efficiently Precision CNC machined 6061 billet aluminum High quality continental hose Includes fittings, caps, and zip ties Wrinkle red finish Designed to work with the following Subaru: Subaru WRX 2015 2021 Air Oil Separator