K&N RX-3800: RX-3800 Round Tapered X-Stream Clamp-On Air Filter
2.438'' (62 mm) Flange Diameter
Round Tapered X-Stream Air Filter Flange Inside Diameter: 2.438" (62 mm) Flange Length: 2.938" (75 mm) Flange Type: Angled 20 Degrees Height: 6.563" (167 mm) Base Outside Diameter: 4.5" (114 mm) Top Outside Diameter: 4" (102 mm)