Precision Works AOS Air Oil Separator - Subaru WRX 02-07 STi 04-19

  • $190.00
  • Save $55.00

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Precision Works AOS Air Oil Separator - Subaru WRX 02-07 STi 04-19

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

Designed to work with the following Subaru:

  • Subaru WRX 02-07
  • Subaru STi 04-19

Check out the AOS system for the 2015+ WRX here.

Product Disclaimer:

Emissions Equipment Tampering Warning: In many states, tampering with your vehicle’s emissions equipment is unlawful. Our products are designed and sold for sanctioned off-road/competition non-emissions controlled vehicles only and may never be used on a public road or highway.

Using our products for street/road use on public roads or highways is prohibited by law unless a specific regulatory exemption exists (more information can be found on the SEMA Action Network website for state-by-state details in the USA).

CARB-Restricted Areas: CARB-Restricted products, will not be shipped to state of California under any circumstatences.

Official Air Resource Board Link: ARB State Adoption Link

Customer Responsibility: It is the responsibility of the installer and/or user of this product to ensure compliance with all applicable local and federal laws and regulations. Please check with your local vehicle authority before purchasing, using, or installing any of our products.

By proceeding with the purchase and use of our products, customers affirm their commitment to adhere to the terms outlined in this comprehensive product disclaimer. We reserve the right to update this disclaimer as necessary.

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