One of the first high-performance air filters to hit the market. Around since day one in the import scene, HKS proves to be one of the most highly respected manufacturers of import performance to date. The HKS Super Mega Flow air filter features a unique mushroom design with a high-flow polyurethane foam air filter element. The special inner funnel lip creates a controlled vacuum behind the lip to draw in air from the outer edge of he filter, not just the center. Greater throttle response, as well as more horsepower, is the direct result. Universal design.