Perrin Air Oil Separator AOS for 2015-2021 WRX (PSP-ENG-609) *Discontinued* English Racing Foreveryday drivability and occasional track

Foreveryday drivability and occasional track use

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This kit has been tested in cars trapping over 160 MPH and at over 50 psi with no signs of running out of fuel

• 39mm diameter fits most applications

Perrin Air Oil Separator AOS for 2015-2021 WRX (PSP-ENG-609) *Discontinued* English Racing Foreveryday drivability and occasional trackPerrin air oil separator for 2015 2021 Subaru WRX. An AOS traps oil from the crankcase vents before it enters the intake, reduces carbon build up, increases intercooler efficiency, which reduces the chance of performance robbing detonation. Available in black, red or neon yellow. Vehicle Fitment: 2015 2021 Subaru WRX Fits with TMIC or FMIC Installation Guide PDF More Info: The Perrin Air Oil Separator is not a catch can. Catch cans capture engine blow