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  • Perrin Performance [02-21 WRX / 04-21 WRX STI] Air Oil Separator - Black - JDMuscleAir Oil SeparatorsperPSP-ENG-620BK
  • Perrin Performance [02-21 WRX / 04-21 WRX STI] Air Oil Separator - Black - JDMuscleAir Oil SeparatorsperPSP-ENG-620BK
  • Perrin Performance [02-21 WRX / 04-21 WRX STI] Air Oil Separator - Black - JDMuscleAir Oil SeparatorsperPSP-ENG-620BK
  • Perrin Performance [02-21 WRX / 04-21 WRX STI] Air Oil Separator - Black - JDMuscleAir Oil SeparatorsperPSP-ENG-620BK
  • Perrin Performance [02-21 WRX / 04-21 WRX STI] Air Oil Separator - Black - JDMuscleAir Oil SeparatorsperPSP-ENG-620BK
  • Perrin Performance [02-21 WRX / 04-21 WRX STI] Air Oil Separator - Black - JDMuscleAir Oil SeparatorsperPSP-ENG-620BK

Perrin Performance

Perrin Performance

Air Oil Separator - Black

Fits: 02-21 WRX / 04-21 WRX STI

$44965 $529.00 Save $79.35
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Pay over time available · Est. $14.05/payment
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Illustrative estimate only, not a financing quote or guaranteed offer. Actual payments, frequency and terms vary by provider and eligibility. Taxes, shipping and add-ons are excluded.

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Perrin Performance Air Oil Separator - Black
Fits: 02-21 WRX / 04-21 WRX STI

Other air oil separators for 15-21 WRX

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Fitment

Please Note: Fits 2002-2021 Subaru WRX and 2004-2021 Subaru WRX STI. Perrin air oil separator, black. Part PSP-ENG-620BK (fitment per retailer fitment data; perrin.com not directly fetchable).
  • 2004–2021 Subaru | WRX STI
  • 2002–2021 Subaru | WRX

Description

The Perrin Performance air oil separator in black, part PSP-ENG-620BK, for the 2002-2021 Subaru WRX and 2004-2021 Subaru WRX STI. The Perrin AOS keeps oil and blow-by out of the intake tract, protecting the intercooler and intake valves from oil contamination on hard-driven turbo Subarus. A must-have reliability upgrade for any modified EJ or FA turbo engine.

  • Separates oil and blow-by from crankcase vapors before they reach the intake
  • Keeps oil out of the intercooler and off intake valves
  • Black anodized finish for a clean engine-bay look
  • Direct-fit kit with all brackets, hoses and hardware included
  • Part PSP-ENG-620BK (fitment per retailer fitment data)

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Warranty and Support

For Perrin Performance warranty information, contact our support team.

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