Crawford Performance Air Oil Separator
is the original solution to Subaru's notorious oiling system issues.
Although the technology was pre-existing with other vehicle brands such as Porsche, Crawford Performance is the inventor of the first system specifically for Subaru. No other AOS on the market employs the same technology.
What does an Air/Oil Separator do?
An air cleaner separates the dirt from the air going into your engine.
An AOS separates the oil from the air going into your engine.
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