Because I'll be asking a lot from this drivetrain in the upcoming months, I chose a clutch with some serious power capacity: Spec's 3+ kit. The 3+ is different from the regular 3 kit, due to the full-faced, carbon metallic friction, high torque sprung hub and disc assembly (Spec rates it at a huge 850 ft-lbs of torque). I also requested an aluminum flywheel and pressure plate, both lightweight components. These parts really make a difference in the drivetrain (the pressure plate is 7 lbs lighter than standard, and the flywheel is 11 lbs, or 46%, lighter!), and are especially great for road race and autocross duty. In addition, throwout and pilot bearings were included in this kit.