Aftermarket Car Parts -Private Label Mfg

Precision Works AOS Air Oil Separator - Subaru WRX 2015-2021

Precision Works AOS Air Oil Separator - Subaru WRX 2015-2021 - Main image
$305.3 $430 In stock

Category: Motor Vehicle Parts

Precision Works AOS Air Oil Separator - Subaru WRX 2015-2021

Air oil separator removes oil from engine ventilation system so the oil does not get into the intake system.

Key Features:

  • Retains OEM PCV valve
  • Engine performs cleaner & efficiently 
  • Precision CNC machined
  • 6061 billet aluminum
  • High quality continental hose
  • Includes fittings, caps, and zip ties
  • Wrinkle red finish

Designed to work with the following Subaru:

  • Subaru WRX 2015-2021 

Air Oil Separator (AOS) Features:

  • Compact Cast Aluminum Design
  • 1 Liter Holding Capacity
  • Integrated ORB Ports
  • Aluminum Body is powder coated in Red Wrinkle Finish
  • Three -8 ORB removable billet hose barbs

Now available in Red or Black!

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Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (4.4 / 5 · 5 reviews)

Sofia ★★★★★

Finally got this installed on my '18 WRX and I can already tell the crankcase vent is much cleaner. The aluminum body feels really solid and it fit perfectly in the stock location without any extra hoses.

Nicholas Y. ★★★★★

After installing this, I immediately noticed the oil was being caught instead of recirculating into the intake, which is exactly what I needed. The build quality is solid and it fit perfectly with the OEM piping.

Sophia X. ★★★★★

Installed this on my 2017 WRX and the fitment was spot-on with the OEM PCV system. No more oil mist in my intake piping after a few hard pulls — exactly what I needed.