K&N RU-5172 Universal Clamp-On Air Filter: Round Tapered; 4.875 in (124 mm) Flange ID; 7.938 in (202 mm) Height; 9 in (229 mm) Base; 6.625 in (168 mm) Top Designed to increase horsepower and acceleration Hundreds of sizes and shapes for most applications High air flow with excellent filtration Clamp-on washable and reusable air filter Pliable flanges absorb vibration and can be stretched up to 1/16 In. to fit in-between sizes