IAG Street Air Oil Separator AOS Subaru WRX 08-14 / STI 08-21 / Forester XT 09-13 | IAG-ENG-7186

Fitment Information: 2008-2014 Subaru WRX 2008-2021 Subaru STI 2005-2009 Subaru Legacy GT 2009-2013 Subaru Forester XT Instructions:  PDF Instructions for 18-21 STI PDF Instructions for 15-17 STI PDF Instructions for 10-14 STI PDF Instructions for 10-14 WRX PDF Instructions for 08-09 WRX SAFEGUARD YOUR SUBARU The IAG Performance Air/Oil Separator (AOS) is a valuable investment to protect and maintain peak performance in your Subaru. Developed through years of meticulous testing on standard and competitive applications, the design of the AOS offers unparalleled protection for your engine. This AOS features a 1-liter swirl pot canister made of cast aluminum. This construction significantly enhances the separation of oil from the PCV system before the PCV gasses are directed back to the intake system.The Air Oil Separator features an aluminum housing that has superior ventilation, and it incorporates an exclusive baffle design that sets it apart from the competition. It works with a