Segmented Kevlar Steel Back System, 110% over stock holding capacity. The FX300 System uses the Power Plus I Pressure Plate with the Steel Back Segmented Kevlar disc. This clutch is designed for the ultimate street enthusiast or weekend racer running a normally aspirated car equipped with cylinder head work and/or hotter cam(s), or with medium-boost turbo or super-charger, or up to 100hp NO2. The FX300 features only slightly increased pedal pressure (overstock components), long life disc and smooth engagement. *Features* * Heavy-duty street & racing system * Holding capacity 110% over stock * Heavy-Duty reinforced pressure plate * Hi-Leverage pressure ring design * Sprung hub/cushioned disc * Steel backed Segmented Carbon/Kevlar *Includes* * Pressure Plate * Clutch Disc * Throw-out Bearing (when applicable) * Pilot Bearing or Bushing (when applicable) * Alignment Tool PartNumber : cm10038-HDTZ Description : FX300 Clutch Kit; Heavy Duty Pressure Plate; Sprung Hub Segmented Kevlar Disc 1991 Mazda RX-7 Base R2.1308cc Drivetrain::Clutch Kits - Single 1989-1991 Mazda RX-7 Convertible R2.1308cc Drivetrain::Clutch Kits - Single 1989-1990 Mazda RX-7 GTU R2.1308cc Drivetrain::Clutch Kits - Single 1989-1990 Mazda RX-7 GTUs R2.1308cc Drivetrain::Clutch Kits - Single 1989-1990 Mazda RX-7 GXL R2.1308cc Drivetrain::Clutch Kits - Single 1989-1990 Mazda RX-7 GXL 2+2 R2.1308cc Drivetrain::Clutch Kits - Single