Boyesen SuperCooler Water Pump Cover and Impeller Kits are specifically
designed to enhance the performance of your engine's cooling system.
These high-flow, hydrodynamic water pump kits have been tested and
designed to flow more coolant. By increasing the flow, the engine will
run cooler at a more constant temperature. The Boyesen Supercooler can
reduce engine temperatures by as much as ten degrees, as confirmed by
tests at Team Kawasaki. How does the Supercooler achieve this?
Hydrodynamics. Boyesen’s investment-cast aluminum water pump cover has
bigger water inlets, a sculpted design, no casting seams, less
restrictive corners, a more efficient impeller and less cavitation. Most
MXA test riders feel that both the Suzuki RM-Z and Kawasaki KX-F offer
marginal cooling efficiency.