K&N RU-4450: RU-4450 Round Tapered Universal Clamp-On Air Filter
2.75'' (70 mm) Flange Diameter
Round Tapered Universal Clamp-On Air Filter Flange Inside Diameter: 2.75" (70 mm) Flange Length: 0.75" (19 mm) Flange Type: Centered Height: 5" (127 mm) Base Outside Diameter: 5.875" (149 mm) Top Outside Diameter: 4.75" (121 mm)