Boyesen Rad Valve - PSR-040

An 'ro-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 horsepower
1-piece aluminum casting; no manifolds to trim or plastic pieces to insert
Boyesen Pro Series RAD Reeds included