An aero-form reed valve that corrects the problems associated with existing reed valve designs. Maintains flow velocity through the valve and re-directs the intake charge for even distribution to the intake ports. Provides quicker, sharper throttle response and more horsepower1-piece aluminum casting; no manifolds to trim or plastic pieces to insert. Boyesen Pro Series RAD Reeds included. Boyesen's hot RAD valves ratchet up your torque
Specially-designed reed cage holds Boyesen's patented dual-stage reeds
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
One-piece cast aluminum bolts in easily
Order one set per cylinder
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