K&N RF-1024 Universal Clamp-On Air Filter: Oval Straight; 4.5 in (114 mm) Flange ID; 10 in (254 mm) Height; 9.25 in x 6.25 in (235 mm x 159 mm) Base; 7 in x 4.5 in (178 mm x 114 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