Perrin Air Oil Separator for TMIC Black WRX (2008-2014) STI (2008-2018) Mitsubishi full 3” straight-through design that

full 3” straight-through design that allows the WRX to deliver its famous rumble without rasp or in-cabin drone

installation grease and instructions are included in each Whiteline sway bar kit for your BRZ/FR-S

3 45mm Offset with a 75mm Bore

The air straightener is laser cut from the same 6061 material and tumbled before the entire assembly is TIG welded by our expert welders

slip fits for easy installation

Perrin Air Oil Separator for TMIC Black WRX (2008-2014) STI (2008-2018) Mitsubishi full 3” straight-through design thatPerrin 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