The ACT Xtreme pressure plate for 1991 Porsche 911 uses an exclusive diaphragm design and a four-stage heat-treating process to boost clamp load, reduce deflection and maximize clutch life. Precision cover stampings add rigidity and consistency. Xtreme plates increase clamp load by 50 to 120 percent and are recommended for use with street or race discs, backed by a one-year warranty.
ACT 1991 Porsche 911 P/PL Xtreme Clutch Pressure Plate