Perrin Red Air Oil Separator WRX/STI w/ TMIC 2008-2014 | PSP-ENG-606RD 2020-23 designed to replace the OEM

designed to replace the OEM brace located under the mid pipe

1x Carbon Fiber Rear Diffuser Extension

Swap-in ready with no modification required

Aluminum naturally resists corrosion and won't rust like steel

Perrin Red Air Oil Separator WRX/STI w/ TMIC 2008-2014 | PSP-ENG-606RD 2020-23 designed to replace the OEMThe AOS increases intercooler efficiency by reducing the amount of oil deposited into your intercooler and intake system! As blow by oil builds up inside your intercooler, the less efficient it becomes due to less heat being transferred away from your engine. This leads to power loss and detonation, which can be damaging to your engine. Reduce carbon build up in the combustion chamber, intake valves, and in your intake tract. Crank case blow by is