Airaid 701-456 Universal Clamp-On Air Filter: Round Tapered; 4 in (102 mm) Flange ID; 7 in (178 mm) Height; 6 in (152 mm) Base; 4.625 in (117 mm) Top Superior filtration Increases performance and mileage Washable and reusable Hand-built using the finest materials Lifetime no hassle warranty