Verus Engineering Air Oil Separator (AOS) Red 08-14 WRX / STI | A0259A-RED vendor_Eibach the Process West system consistently

the Process West system consistently outperforms the factory setup:

The easiest way to tell this is by pulling down your factory shift boot and looking at the color of the lever

Dampening Adjust Type: 32 Way

Please make sure to select the correct option for bulb size

Connector only

Verus Engineering Air Oil Separator (AOS) Red 08-14 WRX / STI | A0259A-RED vendor_Eibach the Process West system consistentlyProduct Fitment: 2008 2014 Subaru WRX 2008 2014 Subaru STI The Verus Engineering Air Oil Separator (AOS) ensures the intake system remains oil free. Oil in the intake system reduces octane, which can lead to detonation, reduction in power, and carbon build up. The unit installs like an OE component with no change to the tune or setup needed. The Verus AOS also filters both the crankcase vent location as well as the intake filter location, through a