02-07 WRX / 04-21 STI GrimmSpeed Air Oil Separator

Spectral Performance proudly carries a great selection of quality aftermarket performance products brought to you by GrimmSpeed. 

This is the GrimmSpeed Air Oil Separator.

If you're familiar with modifying your vehicle, then you will know the importance of an air/oil separator, especially in a boxer-designed engine. The GrimmSpeed example comes with a unique design as it utilizes the factory oil filler cap location to maintain your PCV system while separating the harmful oil and vapors from the crankcase, as well as the head ventilation system. This will prevent oil from coating the intake manifold which will make can make its way onto the valves which will affect the octane rating which leads to detonation issues and performance issues. 

DETAILS:

• Anodized black 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

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