- 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
- Specially-designed reed cage holds Boyesen's patented dual-stage reeds
- Boyesen's hot RAD valves ratchet up your torque
- One-piece cast aluminum bolts in easily
- Order one set per cylinder
Kawasaki -- KX 500 -- (2003, 2002, 2004, 2000, 2001, 1999, 1997, 1992, 1994, 1995, 1987, 1990, 1993, 1988, 1989, 1991, 1996, 1998)