The Fidanza aluminum flywheel for 1988–1989 Toyota MR2 1.6L SC (4A‑GZE) is a lightweight replacement designed to reduce rotating mass. Source features note it is 40–60% lighter than stock, uses a heat‑treated friction plate for grip, replaceable hardened steel ring gear, and a billet aluminum body (6061‑T6 or 2024 T4) to lower moment of inertia for quicker throttle response while maintaining durability with military‑spec fasteners.
Fidanza 88-89 Toyota MR2 1.6L SC 4A-GZE Aluminum Flywheel