Cosworth Performance Panel Air Filter - WRX 2002-2007 / STI 2004-2007
Cosworth Performance Air Filters are constructed from a proprietary synthetic, non woven single layer, pleated polyester filter media that requires no oiling.
For an OE like fit, the filter housing is injected molded from High Impact Polystyrene or Polypropylene Each Cosworth air filter has been engineered to fit the vehicles original air box providing a true cold air supply to the engine. Cosworth Performance Air Filters also provide increased air flow when compared to original equipment air filters.
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