Perrin Air Oil Separator for FMIC Black WRX (2002-2014) STI (2004-2018) Honda Collector (Outer Diameter): 2

Collector (Outer Diameter): 2

Range Rover Full Size Supercharged | '10 - '12

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Golf MK6 R 2

- Dyno-proven gains of up to 73 whp and 64 wtq with catted downpipe

Perrin Air Oil Separator for FMIC Black WRX (2002-2014) STI (2004-2018) Honda Collector (Outer Diameter): 2Perrin Air Oil Separators for the WRX STI are a great product if you want to increase your intercooler efficiency and stopping oil from entering the intake. By reducing the amount of oil that is entering the intercooler and intake system you will have a cleaner more efficient motor and less engine damaging detonation. The Air Oil separator is a great item to have on highly used daily driven cars or complete race cars. Black or red the AOS are a clean