1993-1998 Toyota Supra Twin Turbo XACT Prolite Flywheel by ACT Dramatically improved engine response and acceleration, mild to moderate gear rattle; Heat-treated forging for strength and toughness, induction-hardened ring gears for maximum life; One piece construction allows less opportunity for failure and provides uniform efficient heat transfer from the clutch disc. No more warped inserts or loose ring gears; Recommended for race use; Forged, CNC machined and dynamically computer balanced for smooth high RPM reliability Features Ring Gear Tooth Quantity: 115-tooth Flywheel Material: Chromoly Engine Balance: Internal Weight: 13.000 lbs. Replaceable Friction Surface: No SFI Rating: SFI 1.1 Benefits Dramatically improved engine response and acceleration, mild to moderate gear rattle Heat-treated forging for strength and toughness, induction-hardened ring gears for maximum life One piece construction allows less opportunity for failure and provides uniform efficient heat transfer from the clutch disc. No more warped inserts or loose ring gears Forged, CNC machined and dynamically computer balanced for smooth high RPM reliability Recommended for race use Applications 1993-1998 Toyota Supra Twin Turbo What\’s In The Box? 1 – ACT XACT Prolite Flywheel Warranty ACT 1-Year Limited Warranty