K&N RU-9630: RU-9630 Round Tapered Universal Clamp-On Air Filter - Flange Dia.- F: 2.500 in, 64 mm
2.5'' (64 mm) Flange Diameter
Tapered Air Filter Flange Dia.- F: 2.500 in, 64 mm Base Outside Dia.: 4.500 in, 114 mm Top Outside Dia.: 3.500 in, 89 mm Length- L: 5 in, 127 mm Top Style: Rubber Flange Length-FL: 0.750 in, 19 mm