Collection: Heritage — The Original AOS
The air/oil separator was invented here. Every EJ car still needs one. We still make the original.
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2007-2013 Subaru Forester XT w/TMIC Air Oil Separator V3
Regular price $449.99 USDRegular priceSale price $449.99 USD -
2015-2021 Subaru WRX w/ TMIC Air Oil Separator V3
Regular price $380.49 USDRegular price$449.99 USDSale price $380.49 USDSale -
2008-2014 Subaru WRX w/ TMIC Air Oil Separator V3
Regular price $449.99 USDRegular priceSale price $449.99 USD -
2008-2021 Subaru STI Air Oil Separator V3 w/TMIC
Regular price $449.99 USDRegular priceSale price $449.99 USD -
2014-2018 Subaru Forester XT w/ TMIC Air Oil Separator V3
Regular price $449.99 USDRegular priceSale price $449.99 USD -
2013-2020 Subaru BRZ/FRS/86 Air Oil Separator V3
Regular price $380.49 USDRegular price$449.99 USDSale price $380.49 USDSale -
2008-2014 Subaru WRX Air Oil Separator V2
Regular price From $299.99 USDRegular price$449.99 USDSale price From $299.99 USDSale -
2002-2007 Subaru WRX Air Oil Separator V2 Kit
Regular price $449.99 USDRegular priceSale price $449.99 USD -
2015-2021 Subaru STI Air Oil Separator V2
Regular price $380.49 USDRegular price$449.99 USDSale price $380.49 USDSale -
2008-2014 Subaru STI Air Oil Separator V2
Regular price From $249.99 USDRegular price$449.99 USDSale price From $249.99 USDSale -
2004-2007 Subaru STI Air Oil Separator V2 Ken Block Gymkhana Practice
Regular price $449.99 USDRegular priceSale price $449.99 USD -
2007-2009 Subaru Outback XT Air Oil Separator V2
Regular price $382.49 USDRegular price$449.99 USDSale price $382.49 USDSale -
2005-2009 Subaru Legacy GT Air Oil Separator V2
Regular price From $349.99 USDRegular price$449.99 USDSale price From $349.99 USDSale -
2007-2013 Subaru Forester XT Air Oil Separator V2
Regular price From $329.99 USDRegular price$449.99 USDSale price From $329.99 USDSale -
2004-2006 Subaru Forester XT Air Oil Separator V2
Regular price $449.99 USDRegular priceSale price $449.99 USD