Boyesen Rad Valve Kawasaki Kx500 87-04 POS you can check out the

you can check out the 4

from 2003 to 2008

Beta RR250 05-09 front

Uses the same cam profile as the OEM part for proper throttle control

Boyesen Rad Valve Kawasaki Kx500 87-04 POS you can check out theBoyesen RAD Valves are the most advanced air intake system you can add to your bike! The RAD Valve's seamless, one piece, precision casting and continuous aeroform surfaces ensure maximum flow velocities and instant, explosive movement of air particles the moment you turn the throttle. Integrated into the seamless inner chamber are 4 way aerodynamic directional dividers that distribute the angled charge evenly without flow loss. Each channel has its