The 05-09 Subaru Legacy GT GrimmSpeed Air/Oil Separator removes the oil from the engine ventilation system so the oil does not get sent through the intake system. The AOS has a unique design that allows you to maintain your PCV valve while separating the oil out of the crankcase and head ventilation air. Removing oil out of your intake system will result in a more efficient engine. An air/oil separator takes the place of an oil catch can or tank, resulting in you not having to empty your oil catch can. The AOS coalesces oil without using a mesh media. Mesh medias can cause contaminates to collect and build up resulting in possible sludge. CNC machined from 6061 aluminum and available in black, blue, or red.
- 05-09 Subaru Legacy GT GrimmSpeed Air/Oil Separator
- Removes oil from the engine ventilation system
- Takes the place of an oil catch can
- 1/2 inch hose fittings
- Replaces the OEM oil cap
- Available in black, blue, or red
- 6061 Aluminum