Kawasaki Ultra 310 'K3' Supercharger Pulley Kit

RIVA Kawasaki Ultra 310 'K3' Supercharger Pulley Kit Our Ultra 310 ‘K3’ Supercharger Pulley Kit produces +3 PSI over the OEM supercharger pulley delivering incredible horsepower and torque. The 101mm diameter main pulley is constructed of high strength billet aluminum and coated with a military spec material for improved belt wear and corrosion resistance. Also includes stainless steel idler pulley with precision stainless bearing and special idler pulley installation tool.   Key Features: More acceleration & top speed. Billet aluminum main pulley. Stainless idler pulley with stainless bearing. Special idler pulley installation tool. Stainless steel hardware. Made in USA.