IAG Performance V3 Competition Series Air / Oil Separator AOS Black 2008-2014 WRX / 2008+ STI
air oil separatorsblackbuildyourvaengineiag performancestisubaruSubaru-STISubaru-STI-2008Subaru-STI-2009Subaru-STI-2010Subaru-STI-2011Subaru-STI-2012Subaru-STI-2013Subaru-STI-2014Subaru-STI-2015Subaru-STI-2016Subaru-STI-2017Subaru-STI-2018Subaru-STI-2019Subaru-WRXSubaru-WRX-2008Subaru-WRX-2009Subaru-WRX-2010Subaru-WRX-2011Subaru-WRX-2012Subaru-WRX-2013Subaru-WRX-2014
The IAG Performance Competition Series billet aluminum Air / Oil separator (AOS) vents crankcase vapors to the atmosphere. The design is based on years of service on racing and high horsepower Subaru's. The AOS's approximate 1-liter capacity, fully heated housing, superior breathing and unique patent pending baffle design sets it apart from the rest.