Perrin [02-07 WRX/STI] Air Oil Separator Red w/ TMIC
The Perrin Air Oil Separator for 2002-2007 WRX and STI with a top-mount intercooler increases intercooler efficiency by reducing the amount of oil deposited into the intercooler and intake system. As blow-by oil builds up inside the intercooler, the less efficient it becomes due to less heat being transferred away from the engine, leading to power loss and detonation. The AOS also reduces carbon buildup in the combustion chamber, intake valves, and intake tract. The base plate of the AOS is heated by coolant drawn from the engine, decreasing water condensation and nearly eliminating the sludge buildup common in other AOS bodies.
- Separates oil from crankcase blow-by before it enters the intake
- Reduces chances of performance-robbing detonation
- Reduces carbon buildup in the combustion chamber, intake valves, and intake tract
- Coolant-heated base plate minimizes sludge buildup and cleaning
- Designed for vehicles with the factory-style top-mount intercooler (TMIC)
- 2002-2005 WRX installation requires removal of the cruise control module
- Red powder-coated finish
Products received may vary slightly from images due to manufacturing tolerances or supply chain variables.
International Orders (Outside USA)
Please be aware your country may charge import fees of up to 20% in some cases. If delivery is refused, return shipping costs us 4x the original shipping fee, so we will charge a 50% restocking fee. By purchasing you agree to these terms.
Terms of Service:
By clicking purchase, you confirm you have read and agree to the TOS and Shipping & Return policies which are published at the bottom of SLRspeed.com
The Premium Suspension Company
Trusted by top racing and drifting teams worldwide.
