The PERRIN Air Oil Separator traps oil from the crank case vents before it enters the intake, reduces carbon build-up, increases intercooler efficiency, which reduces the chance of performance-robbing detonation.
Perrin 02-14 Subaru WRX / 04-19 STI with FMIC Air Oil Seperator – Neon Yellow
Original price was: $486.99.$97.40Current price is: $97.40.
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