IAG Street Air Oil Separator AOS Subaru WRX 08-14 / STI 08-21 / Forester XT 09-13 | IAG-ENG-7181RD vendor_Fast Turn Fittings Correct splitter installed: Forces air

Correct splitter installed: Forces air directly through the intercooler for maximum performance

- Valve Cover Fittings -8AN (4)

17mm (requires 12pt - 17mm

Unique Design for aesthetics and 100% functionality

IAG Street Air Oil Separator AOS Subaru WRX 08-14 / STI 08-21 / Forester XT 09-13 | IAG-ENG-7181RD vendor_Fast Turn Fittings Correct splitter installed: Forces airFitment Information: 2008 2014 Subaru WRX 2008 2021 Subaru STI 2005 2009 Subaru Legacy GT 2009 2013 Subaru Forester XT Features: The IAG Performance V3 Street Series Air Oil separator (AOS) is an excellent investment to keep your Subaru vehicle running well. The Street Series AOS maintains OEM PCV system functionality, but supplements its capacity. The Street Series AOS design is based on years of extensive testing on standard and competition