Spectre Performance HPR9606 Universal Clamp-On Air Filter: Round Tapered; 6 in (152 mm) Flange ID; 5.719 in (145 mm) Height; 7.219 in (183 mm) Base; 3.906 in (99 mm) Top Factory pre-oiled filter comes ready to use Quality materials used in the construction Easy to install clamp-on style Available with red, blue, black or white media Features low-restriction, washable oiled synthetic media