ACT MB010XX MaXX Xtreme Pressure Plate Provides 70-150% clamp load increase and a stiff to very stiff pedal feel; good choice for a race disc Optimum working range for maximum clutch life, clamp load, and release travel Manufactured from new units, not rebuilt from worn out parts; 100% tested and computer balanced Unique single diaphragm design maintains proper pressure plate geometry for dramatically improved performance 90 day limited manufacturer's warranty