Cosworth Replacement High Flow Air Intake Filter - WRX 2002-2014 / STI 2004-2017 / More
Cosworth Performance Air Filters are constructed from a proprietary synthetic, non-woven single layer, pleated polyester filter media that requires no oiling.
This is meant as a replacement filter for Cosworth intakes only. This is not confirmed to work with any other intakes.
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