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Air and Fuel› Air Cleaners, Filters, Intakes and Components

Perrin Performance

PERRIN 02-07 Subaru WRX/STi Air Oil Separator Kit - Black

$572.00 $486.20 Save $85.80

SKU: P004 PSP-ENG-605BK

In Stock
In Stock
Ships by Jun 13
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The PERRIN Air Oil Separator separates oil from engine blow-by and drains it back to the engine, eliminating the need for constant draining found in catch cans. It features swirl pot technology and multi-layer baffles for efficient oil separation. The base plate is heated by coolant to prevent water condensation and sludge buildup. It is powder-coated for durability.

Fitment

Fitment Guaranteed

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on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

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Specifications

BrandPerrin Performance
Part NumberP004 PSP-ENG-605BK

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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