The ACT XACT Prolite flywheel for the 1989 Nissan 240SX is ACT’s lightest offering, engineered for the lowest inertia to improve throttle response and acceleration. Prolite units target road or rally racing applications where quick revs are prioritized, though they reduce drivability compared with heavier options. Materials are balanced for strength and heat tolerance; units are serviceable and can be resurfaced.
ACT 1989 Nissan 240SX XACT Flywheel Prolite