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

Eliminate oil contamination in your intake system and boost engine efficiency with this precision-engineered performance upgrade. This bolt-on air oil separator intercepts unwanted oil vapors from your crankcase ventilation before they reach your intake, keeping your engine running cleaner and more efficiently.

• •Retains OEM PCV valve for seamless integration
• •CNC-machined 6061 billet aluminum construction
• •1-liter holding capacity with integrated ORB ports
• •Three -8 ORB removable billet hose barbs
• •Premium Continental hose included
• •Powder-coated red wrinkle finish (black option available)
• •Direct fit for Subaru WRX 2015-2021

Complete kit includes all necessary fittings, caps, and zip ties for hassle-free installation.