BOYESEN

One piece designEasy installationThe intake charge is redirected for more even distribution to the intake portsConstant flow velocity is maintained for instant throttle response and more horse power

Developed with Factory Yamaha, Pro Circuit, Factory Kawasaki of Europe, Factory KTM and top pros like Jeremy McGrath, Sebastian Tortelli and many others Maintain flow velocity through the valve and...

The latest carbon fiber technology with all the advantages of Boyesen's dual-stage reed design Quickest acceleration any reed can offer, maximizing horsepower and torque. REPLACEMENT REED

The latest carbon fiber technology with all the advantages of Boyesen's dual-stage reed design Quickest acceleration any reed can offer, maximizing horsepower and torque. REPLACEMENT REED

The latest carbon fiber technology with all the advantages of Boyesen's dual-stage reed design Quickest acceleration any reed can offer, maximizing horsepower and torque. REPLACEMENT REED

The latest carbon fiber technology with all the advantages of Boyesen's dual-stage reed design Quickest acceleration any reed can offer, maximizing horsepower and torque. REPLACEMENT REED

The latest carbon fiber technology with all the advantages of Boyesen's dual-stage reed design Quickest acceleration any reed can offer, maximizing horsepower and torque. REPLACEMENT REED

The latest carbon fiber technology with all the advantages of Boyesen's dual-stage reed design Quickest acceleration any reed can offer, maximizing horsepower and torque. REPLACEMENT REEDS

The latest carbon fiber technology with all the advantages of Boyesen's dual-stage reed design Quickest acceleration any reed can offer, maximizing horsepower and torque. REPLACEMENT REED

One piece designEasy installationThe intake charge is redirected for more even distribution to the intake portsConstant flow velocity is maintained for instant throttle response and more horse power

One piece designEasy installationThe intake charge is redirected for more even distribution to the intake portsConstant flow velocity is maintained for instant throttle response and more horse power

Maintain flow velocity through the valve and redirect intake charge for more even distribution to intake ports Made of one-piece aluminum castings and bolts in easily; no modifications necessary...