Champion CAP4309 Engine Air Filter ( Colors May Vary ) Removes Air Contaminants: 99% efficient premium media removes contaminants from intake air Filters out Unwanted Debris: Prevents particles from entering the combustion system Sealed for Best Performance: Urethane seal/gasket provides for proper seal in filter housing Optimized Pleat Count: Increased airflow, horsepower and engine performance Compatible with the Following Applications: Subaru, Nissan, Infiniti and Saab