YAMAHA YZ 250 2000-04
Rad Valve
- Maintain flow velocity through the valve and redirect intake charge for more even distribution to intake ports
- Provide quicker, sharper throttle response and more horsepower throughout rpm range
- Specially-designed reed cage holds Boyesen s patented dual-stage reeds
- Boyesen s hot RAD valves ratchet up your torque
- One-piece cast aluminum bolts in easily