BOYESEN 97-98 YZ250 BOY.RAD.VALVE RAD-34D Header - GAS GAS EC 300

- GAS GAS EC 300 GP 2018 2019 2020

415 Chain is best suited for bikes up to 50cc

who tested the product on various surfaces

· Honda CR80 1998

BOYESEN 97-98 YZ250 BOY.RAD.VALVE RAD-34D Header - GAS GAS EC 300Boyesen Rad Valve RAD 34D RAD34D 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