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The ACT Heavy Duty pressure plate for the 1990 Mazda Miata increases clutch clamp load and reduces diaphragm deflection through an exclusive diaphragm design. ACT subjects diaphragms to a four-stage heat-treating process and uses precision cover stampings for rigidity. The Heavy Duty option raises clamp load 20–50% and is recommended for use with street or race discs; one-year warranty included.
ACT 1990 Mazda Miata P/PL Heavy Duty Clutch Pressure Plate
