K&N RC-2900 Universal Clamp-On Air Filter: Oval Straight; 2.125 in (54 mm) Flange ID; 4 in (102 mm) Height; 4 in x 3 in (102 mm x 76 mm) Base; 3 in x 2 in (76 mm x 51 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