All ACT flywheels are made from forged Chrome-Moly Steel which is stronger than cast iron, billet steel or aluminum, CNC Machined to exact tolerances. Featuring induction hardened integral ring gear, durable and thick enough to be resurfaced.
Streetlite / 13.8 lbs.- Preferred for Street and Drag Racing- Improved throttle response and acceleration- Considerably lighter than stock- Most durable flywheel available- Good drivability
Note: Counterweight Sold Separately
Prolite / 11.8 lbs.- Preferred for Road Racing or minimum inertia- Quick throttle response and acceleration- Lightest with lowest inertia- Reduced drivability
Stock counterweight for 04-08 RX-8. Used with aftermarket flywheels