K&N RU-3020 Universal Clamp-On Air Filter: Round Straight; 5 in (127 mm) Flange ID; 9 in (229 mm) Height; 6.5 in (165 mm) Base; 6.5 in (165 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