BOYESEN 1999 YZ250 BOY.RAD VALVE RAD-34E Muffler End Cap but if unsure

but if unsure

400/620/625/640 LC-4 97-10

On the upper side stamped suede for increased grip and heat resistance

or just kicking back with mates

The striking logos of Carl Cox Motorsport

BOYESEN 1999 YZ250 BOY.RAD VALVE RAD-34E Muffler End Cap but if unsureBoyesen Rad Valve RAD 34E RAD34E Now delivered with carbon fiber reeds for even greater performance gains Maintains flow velocity through the valve and redirects intake charge for more even distribution to the intake ports Sharper, quicker throttle response Added torque improves performance on hills, through corners and over technical jumps Increases horsepower in low , middle and especially the top end ranges One piece aluminum casting, no trimming