K&N Engineering RU-0810 Universal Round Straight Air Filter - Rubber End Cap tires-wheels-wheel-spacers-rear-wheel-spacers Converts old two bolt flange

Converts old two bolt flange style manifolds to accept Mikuni HSR and late Keihin CV carbs

Completely biodegradable and non-toxic

2003-2008 Yamaha YFM80W Raptor

Advanced Polycarbonate shell

1986-1987 Kawasaki KXT250 Tecate

K&N Engineering RU-0810 Universal Round Straight Air Filter - Rubber End Cap tires-wheels-wheel-spacers-rear-wheel-spacers Converts old two bolt flangeMounting Flange Inside Diameter 2 7 16in. MM 62, Filter Outside Diameter 3 1 2in. MM 89, Filter Length 5in. MM 127, Flange Length 5 8in. 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.