Perrin Red Air Oil Separator Subaru WRX 2002-2014 / STI 2004-2021 with FMIC | PSP-ENG-607RD vendor_Ferrea custom engineered for each application

custom engineered for each application

This Spring requires Ferrea Titanium Retainer # E11065 and Ferrea Spring Seat Locator # SL1051 (Discard OEM Spring Seat Locator)

-75A durometer bushings

33mm Heavy Duty ConstructionLarger diameter for increased roll resistance and improved chassis control

Perrin Red Air Oil Separator Subaru WRX 2002-2014 / STI 2004-2021 with FMIC | PSP-ENG-607RD vendor_Ferrea custom engineered for each applicationFitment Information: 2002 2014 Subaru WRX (with a Front Mount Intercooler) 2004 2021 Subaru STI (with a Front Mount Intercooler) 2005 2009 Subaru Legacy GT (with a Front Mount Intercooler) 2005 2009 Subaru Outback XT (with a Front Mount Intercooler) Features: Reduces the chances of detonation Traps oil from the crankcase ventilation before it enters the intake system Increases intercooler efficiency by reducing the amount of oil deposited into your