Perrin Air Oil Separator for TMIC Red WRX (2008-2014) STI (2008-2018) Scion Stock plastic tanks are prone

Stock plastic tanks are prone to failure due to repeated hot and cold cycles

The Dual Port BOV for the EVO is four valves in one

5” deep with a volume of 906

new crank bolts

- Includes alignment tool

Perrin Air Oil Separator for TMIC Red WRX (2008-2014) STI (2008-2018) Scion Stock plastic tanks are pronePerrin 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