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The ACT HD/Perf Street clutch kit for 1991 Mazda Miata combines ACT’s Heavy Duty pressure plate with a performance street sprung disc for durable daily driving. The diaphragm pressure plate undergoes four-stage heat treatment for consistent clamp load, while the organic, high‑copper disc improves heat transfer and burst strength. Reduced marcel yields quicker shifts and reliable operation, backed by a one-year warranty.
ACT 1991 Mazda Miata HD/Perf Street Sprung Clutch Kit
