PERRIN Air Oil Separator Black Aftermarket FMIC - Subaru Models (inc. 2002-2014 WRX / 2008-2021 STI)

Spectral Performance is proud to provide you with a great selection of Air Oil Separators brought to you by PERRIN Performance.

On this page, you are looking at the PERRIN Performance Air Oil Separator designed to work with aftermarket front mount intercooler systems.

Here are the details:

• Traps oil from the crankcase ventilation before it enters the intake system
• Reduces the chances of detonation
• Increases intercooler efficiency by reducing the amount of oil deposited into your intercooler and intake system
• Reduces carbon buildup in the combustion chamber, intake valves, and intake tract
• NOT a catch can system
• Separates engine oil from water vapors and allows the oil to drain back into the engine
• Oil entering from the crankcase vents spins counterclockwise through the entire body of the AOS that passes along 4 walls equalling 50.25 square inches of surface area
• Multiple baffle walls in the compact design simulate the surface area of an AOS that is 13.5" tall
• Comes provided with all necessary hoses and hose fittings
• Can comes with a black powder-coated finish
• All hardware, brackets, fittings, and clamps are included to make this AOS system ready for the installation