![Perrin [02-07 WRX/STI w/ TMIC] Red Air Oil Separator | PSP-ENG-605RD SPC Performance These bolt directly to factory](https://cdn.shopify.com/s/files/1/0023/6109/8353/files/perrin-red-air-oil-separator-subaru-wrxsti-w-tmic-2002-2007-psp-eng-605rd-air-oil-separators-perrin-performance-papsp-eng-605rd.jpg?v=1783649867)
Pay in 4 interest-free payments of $62.75 Learn more
Ships within 48 hours · Estimated delivery Aug 1 - Aug 6
These bolt directly to factory mounting points with no modifications to your engine bay or exhaust system
Girling E30 318 / 325 calipers
Mount it once and forget about it — no welding
Transform your Audi A6 e-tron into a beacon of sophistication and safety with our premium Audi A6 e-tron Puddle Lights
Perrin [02-07 WRX/STI w/ TMIC] Red Air Oil Separator | PSP-ENG-605RD SPC Performance These bolt directly to factoryThe 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