K&N RF-1040 Universal Clamp-On Air Filter: Oval Straight; 4 in (102 mm) Flange ID; 7.5 in (191 mm) Height; 9 in x 5.75 in (229 mm x 146 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