K&N Engineering RU-1620 Universal Round Straight Air Filter - Rubber End Cap body-guards-accessories 24:1 1st gear/

24:1 1st gear/

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K&N Engineering RU-1620 Universal Round Straight Air Filter - Rubber End Cap body-guards-accessories 24:1 1st gear/Mounting Flange Inside Diameter 2 7 8in. MM 73, Filter Outside Diameter 4in., Filter Length 6in., Flange Type Centered. When selecting one of K&Ns universal round straight air filters, you should consider the following dimensions as they relate to the specification chart:. Mounting Flange Inside Diameter This is the most critical dimension and should be very close to the diameter of the applications inlet flange. The flange will stretch up to 1 8in.