Perrin Air Oil Separator for TMIC Black WRX (2008-2014) STI (2008-2018) Mitsubishi the air flow is tuned

the air flow is tuned for optimal performance and engine safety

you can return to stock at any time

All radiators come with a 1 year warranty including accident protection

TurboXS is proud to release the 2011-2014 Subaru WRX / STI Sedan Quad Tip Touring Catback Exhaust System

Perrin Air Oil Separator for TMIC Black WRX (2008-2014) STI (2008-2018) Mitsubishi the air flow is tunedPerrin 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