ACT Prolite Flywheel - 07-13 Mazda Mazdaspeed3 2.3 Turbo, Mazdaspeed6 - 600521 Nissan Skyline R33 ZM2-HDG4 kit features ACT's most

ZM2-HDG4 kit features ACT's most popular Heavy Duty pressure plate

NX1-HDG4 kit features ACT's most popular Heavy Duty pressure plate

the small amount of compliance the rubber adds equates to a very noticeable "spongy" feeling in the shift knob during shifts

8 B18B1 w/ B16A B18C5 VTEC Head

VR1-HDSS kit features ACT's most popular Heavy Duty pressure plate and most popular street disc

ACT Prolite Flywheel - 07-13 Mazda Mazdaspeed3 2.3 Turbo, Mazdaspeed6 - 600521 Nissan Skyline R33 ZM2-HDG4 kit features ACT's most600521 is a Prolite flywheel, which is ACTs lighter flywheel offering with lowest inertia. Prolite flywheels are designed for best throttle response and acceleration. Prolite flywheels are preferred for road racing or rally racing, and have reduced drivability. Materials are properly distributed for maximum strength, good heat tolerance and rigidity. ACT flywheels are serviceable and can be resurfaced with no need to purchase additional parts.