K&N RU-3580: RU-3580 Round Tapered Universal Clamp-On Air Filter
3'' (76 mm) Flange Diameter
Round Tapered Universal Clamp-On Air Filter Flange Inside Diameter: 3" (76 mm) Flange Length: 1.75" (44 mm) Flange Type: Centered Height: 5" (127 mm) Base Outside Diameter: 6" (152 mm) Top Outside Diameter: 4" (102 mm)