Airaid (AIR-720-128) Universal Clamp-On Air Filter: Oval Tapered; 4.5 in (114 mm) Flange ID; 7.375 in (187 mm) Height; 11.5 in x 7 in (292 mm x 178 mm) Base; 9 in x 4.5 in (229 mm x114 mm) Top Utilize a urethane body that won't crack or curl Increased airflow of up to 20% over OEM filters Multiple Cotton Gauze layers and a SynthaFlow layer assure the cleanest air possible from any washable filter Washable and re-usable so you will never need to buy another for your vehicle Backed by a "no hassle" lifetime warranty