Made with DuPont Kevlar or Barnett's exclusive carbon fiber friction plates. Friction plates feature a "segmented" design, which increases oil flow and allows the plates to run cooler for longer life and smoother, more consistent performance. Carbon fiber friction material has a very high tolerance for heat making it an ideal choice for street or track. Drive plates are made from tempered steel and quality checked for flatness. All complete clutch kits are pre-measured for proper stack height to ensure smooth, reliable performance right out of the box.