SPEED STYLE AIR/OIL Separator AOS 

FOR Subaru WRX 2002-2007 / STI 2004-2019

Air/Oil Separator is designed for one task.  That task is to remove any unwanted oil from the engine's ventilation system so the oil does not get sent through the intake system. 

By reducing the amount of oil headed for the intake system, you give your engines ability to perform cleaner and more efficiently.  

The S2 Industries Air/Oil separator is a direct factory bolt on item, requiring minimal modifications to the OEM PCV system.  

This unit is made out of aluminum. 

Application : Fits 02-07 WRX & 08+ WRX, STi & Legacy GT

MSRP: 249.99

Included with this kit:

(1) BLACK Air/Oil Separator Unit

(3) AOS Hose Fittings

(1) 1/2" to 1/2" to 1/2" Tee Hose Connector

(2) 1/2" to 1/2"Hose Connector

(4) 1/2" to 5/8" Hose Connector

(1) 5/8" to 5/8" 90* Hose Connector

(1) 5/8" Cap

(1) 5/8" Plug

(1) 1/2" Cap

(1) 1/2" Plug

8'L of 1/2" Hose

1'L of 3/8"Hose

1'L of 5/8 Hose

(20) Plastic Zip Ties