K&N RU-3120: RU-3120 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: 1" (25 mm) Flange Type: Angled 10 Degrees Height: 6" (152 mm) Base Outside Diameter: 4" (102 mm) Top Outside Diameter: 2" (51 mm)