K&N RU-4950: RU-4950 Round Tapered Universal Clamp-On Air Filter
2.5'' (64 mm) Flange Diameter
Round Tapered Universal Clamp-On Air Filter Flange Inside Diameter: 2.5" (64 mm) Flange Length: 2" (51 mm) Flange Type: Centered Height: 5.5" (140 mm) Base Outside Diameter: 6" (152 mm) Top Outside Diameter: 5" (127 mm)