Crawford Performance Air Oil Separator V2 Subaru STI 2004-2007
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Delivery and Shipping
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Crawford Performance Air Oil Separator V2 Subaru STI 2004-2007
Crawford Performance Air Oil Separator V2 STI 2004-2007
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Not a Catch Can - Closed Loop and Maintenance Free
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Consume Less Oil
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Extend the Life of your Engine
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Reduce Detonation and Risk of Engine / Ringland Failure
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Reduce Fuel Dilution and Subsequent Power Loss
Oil pooling in your intake? Stop the oil from ever getting there with the Crawford Air Oil Separator.
The Crawford Performance Air Oil Separator (AOS) 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.
Note: For Off-Road Use Only
Want to know more about how an Air/Oil Separator works and why you need one?
Click here to check out our FAQ blog on the technology inside.
There you can also find a full fitment list for all current versions and kits.
Also check out our latest technology with patent pending:
The Crawford Performance Dual Chamber AOS (V3)
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