Grimmspeed Air Oil Separator 2008-2014 WRX

The GrimmSpeed Subaru Air/Oil Separator has a unique patent pending design that allows you to maintain your PCV Valve while separating the oil out of the crankcase and head ventilation air! Our AOS will allow your engine to run more efficiently due to the separation of oil from the intake system. When there is oil in your system, the result is 1) reduced fuel octane 2) higher chance of engine knock(detonation) 3) worse emissions 4) higher oil consumption. Our Subaru Air/Oil Separator will help all of these problems.

DETAILS:

• Anodized red finish option with white GrimmSpeed logo
• The unique design utilizes the factory oil filler cap location to maintain your PCV system
• Prevents harmful oil and oil vapors from entering the crankcase and head ventilation system
• Prevents the reduction of fuel octane
• Prevents the higher chances of engine knock and detonation
• Prevents worse emissions
• Prevents higher oil consumption
• Very compact design
• Coalesces oil without using a mesh media which can cause contaminants to collect and cause a sludge buildup
• The design eliminates the need to check/empty your catch can while refilling your oil
• Includes all of the required fittings
• Includes hose that is cut to specific lengths and zip ties