The Boyesen Rad Valve Reed Cage Assembly is a bolt-on intake upgrade designed to improve airflow control for stronger torque and sharper throttle response. Its one-piece aluminum casting installs easily with no modifications and helps deliver more power throughout the RPM range.
Boost throttle response and power with the Boyesen Rad Valve Reed Cage Assembly. This Rad Valve system is designed to maintain intake flow velocity and redirect the incoming charge for more even distribution to the intake ports. The result is a quicker, sharper throttle response and increased horsepower across the entire RPM range—along with the strong, usable torque Boyesen is known for.
Because it’s built as a bolt-in, one-piece aluminum casting, installation is straightforward and typically requires no modifications. It’s an ideal upgrade when you want improved performance and rideability without complicated engine work.
