Perrin Red Air Oil Separator WRX/STI w/ TMIC 2008-2014 | PSP-ENG-606RD Car Apparel Compatible With BMW 4-Series RWD

Compatible With BMW 4-Series RWD (F32/F33/F36) 2014 2015 2016 (3-Bolts w/o EDC)

PERRIN boost tubes are CNC mandrel bent from aluminum tubing for better weight reduction

This listing is for the 'Street edition'

Constructed for durability and precision

Perrin Red Air Oil Separator WRX/STI w/ TMIC 2008-2014 | PSP-ENG-606RD Car Apparel Compatible With BMW 4-Series RWDThe 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