Spectre Performance 8129 Universal Clamp-On Air Filter: Round Tapered; 3.5 in (89 mm) Flange ID; 5.75 in (146 mm) Height; 6 in (152 mm) Base; 4.625 in (117 mm) Top Featuring checkered media for a stylish carbon fiber look Factory pre-oiled synthetic filter, ready to use Quality materials used in the construction include the finest synthetic, urethane and steel mesh Easy to install, no special tools or skills required Fits all 3-1/2 inch intake tube applications