Part Number: PSP-ENG-606

Description: Air Oil Separator

Color: Available Black, Red, & Neon Yellow

Fitment: 08-14 Subaru WRX & STI Hatchback & Sedan w/TMIC

Not for sale or street use in CA & CARB states.

Details:

PERRIN Performance Air Oil Separator designed to work with the stock top mount intercooler. 

Features:

• 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 red powder-coated finish

• All hardware, brackets, fittings, and clamps are included to make this AOS system ready for the installation