K&N RC-5178 Universal Clamp-On Air Filter: Oval Straight; 3.688 in (94 mm) Flange ID; 7.875 in (200 mm) Height; 10.25 in x 7.188 in (260 mm x 183 mm) Base; 9 in x 5.375 in (229 mm x 137 mm) Top Designed to increase horsepower and acceleration Washable and reusable lifetime air filter Rigid flange for connection to a hose Made in USA One year limited warranty Fits the new 57-2546-1 air intake system