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The ACT 4-pad sprung race disc for the 1990 Mazda Miata is a ceramic-friction race disc built for faster shifting and firmer engagement. Heavy-duty torsional dampening springs and a heat-treated spring-steel drive plate resist high loads typical of track use, while compact sizing suits smaller engines. Backed by ACT’s one-year warranty, it’s a focused choice for club racing and aggressive street applications.
ACT 1990 Mazda Miata 4 Pad Sprung Race Disc
