Spectre Performance HPR9881B Universal Clamp-On Air Filter: Round Tapered; 6 in (152 mm) Flange ID; 10.25 in (260 mm) Height; 7.719 in (196 mm) Base; 5.219 in (133 mm) Top Factory pre-oiled filter comes ready to use Quality materials used in the construction Easy to install with no special tools or skills required Fits many universal applications Features low-restriction, washable oiled synthetic media