Perrin Air Oil Separator for TMIC Black WRX / STI (2002-2007) BMW This allows uninterrupted exhaust flow

This allows uninterrupted exhaust flow from the 3

more capable pitch stop mount to replace the wimpy soft rubber OEM piece

5L with more power

The stage 1 Power Package consists of an upgraded Stealthbox Cold Air Intake system that replaces the factory restrictive unit

decreasing the chance for leaks and allowing for easy removal if necessary

Perrin Air Oil Separator for TMIC Black WRX / STI (2002-2007) BMW This allows uninterrupted exhaust flowPerrin 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