K&N Universal Air Filter - Round Tapered 3.5in Flange ID / 5.5in Base OD / 4.5in Top OD / 6.5in H K&N Engineering RP-4630

The RP-4630 Universal Air Filter is constructed from an oiled cotton filter media. It comes with a K&N embossed carbon fiber top for strength and durability. The carbon fiber element adds to the light-weight design and gives this filter a smooth glass like finish. The RP-4630 is a clamp-on filter that has an inside flange diameter of 3-1/2 inches and a flange length of 1-1/4 inches. The base diameter is 5-1/2 inches, the top diameter is 4-1/2 inches and the filter height is 6-1/2 inches.