BOYESEN 2003 RM250 BOYESEN RAD VALVE RAD-24J LIT ENDURO NX 250 MD25 (1990-1993)

NX 250 MD25 (1990-1993)

Engineworx Gasket Kit (Top Set) Yamaha YZ250 2001

ST250 02-23

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Boyesen Rad Valve - RAD-21H / RAD21H

BOYESEN 2003 RM250 BOYESEN RAD VALVE RAD-24J LIT ENDURO NX 250 MD25 (1990-1993)Boyesen Rad Valve RAD 24J RAD24J 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