K&N RC-4900: RC-4900 Tapered Filter Flange Dia.- F: 4.125 in., 105 mm
4.125'' (105 mm) Flange Diameter
Tapered Filter Flange Dia.- F: 4.125", 105 mm Base Outside Dia.: 7.375", 187 mm Top Outside Dia.: 6.625", 168 mm Length- L: 7.875", 200 mm Top Style: Metal Flange Length-FL: 1.125", 29 mm Flange Angle-FA: 0º Flange Offset: 0"