|HEAT IS THE #1 ENEMY OF 4-STROKE ENGINE PERFORMANCE*
ENHANCED ENGINE COOLING SYSTEM
The patented Boyesen design increases water flow, reduces hydraulic friction and cavitation, so your engine can run as much as 10 F cooler.
"My YZ450F over heated sometimes in the nasty stuff. I installed the SuperCooler kit and have not had a problem since. It works great and is not just bling for your bike, worth the money if running hot is an issue." - Jordan
See dirtrider.com test here