The ACT Prolite Flywheel (Part Number 600255) is a precision-engineered lightweight upgrade for 1994–1999 Mazda Miata 1.8L models. Constructed from heat-treated forged material, this flywheel combines exceptional strength and reduced inertia to deliver sharper throttle response and improved acceleration. Its low-mass design enables faster engine revs and greater control, making it ideal for spirited driving, autocross, and competitive racing environments.
The one-piece forged construction provides superior durability and ensures even heat transfer, reducing the risk of warping or failure during demanding operation. An induction-hardened ring gear extends the service life, while CNC machining and dynamic balancing guarantee smooth, stable performance at high RPMs. Engineered for both precision and longevity, the Prolite Flywheel offers a reliable balance between weight savings and structural integrity.
Fully serviceable and resurfaceable, this flywheel supports long-term use without requiring additional replacement components. Designed for enthusiasts and professional racers alike, the ACT Prolite Flywheel enhances vehicle responsiveness, power delivery, and overall driving dynamics—an ideal choice for drivers seeking performance gains without compromising reliability.
Features:
- Low inertia design for improved throttle response and acceleration
- Constructed from heat-treated forging for strength and durability
- Induction-hardened ring gear for maximum lifespan
- One-piece CNC machined construction for uniform heat transfer and reliability
- Dynamically balanced for smooth high RPM operation
- Serviceable and resurfacing capable for long-term use
- Recommended for race and rally applications
Fitment:
1990 Mazda Miata Base
1991 Mazda Miata Base
1991 Mazda Miata SE
1992 Mazda Miata Base
1993 Mazda Miata Base
1993 Mazda Miata LE
1994 Mazda Miata Base
1994 Mazda Miata M Edition
1995 Mazda Miata Base
1995 Mazda Miata M Edition
1996 Mazda Miata Base
1996 Mazda Miata M Edition
1997 Mazda Miata Base
1997 Mazda Miata M Edition
1997 Mazda Miata STO
1999 Mazda Miata 10th Anniversary
1999 Mazda Miata Base
2000 Mazda Miata Base
2000 Mazda Miata LS
2000 Mazda Miata SE
2001 Mazda Miata Base
2001 Mazda Miata LS
2001 Mazda Miata SE
2002 Mazda Miata Base
2002 Mazda Miata LS
2002 Mazda Miata SE
2003 Mazda Miata Base
2003 Mazda Miata LS
2003 Mazda Miata SE
2003 Mazda Miata Shinsen
2004 Mazda Miata Base
2004 Mazda Miata LS
2004 Mazda Miata Mazdaspeed
2005 Mazda Miata Base
2005 Mazda Miata LS
2005 Mazda Miata Mazdaspeed
