CNC-machined billet aluminum design features over twice the friction area of the stock clutch. Provides positive engagement and release. Incorporates six heavy-duty coil springs instead of the diaphragm spring; includes an extra heavy-duty set of springs for higher horsepower applications. Comes assembled with bearing included. Kit includes clutch basket, clutch hub, drive plates, driven plates, two sets of clutch springs, pressure plate and necessary hardware.