Fits select 2005-2020 Subaru WRX, BRZ, Legacy, Outback, Forester, and Baja, as well as Toyota 86, Scion FR-S, and Saab 9-2X Aero.

The ACT XACT Streetlite flywheel (600480) is engineered to significantly improve engine response and acceleration by reducing rotational mass. Unlike flywheels with bolt-on ring gears or friction surfaces, this one-piece forged steel unit provides uniform heat transfer and eliminates the risk of warped inserts or loose components under high-load conditions. It provides a noticeable improvement in throttle response while maintaining drivability with only mild gear rattle.

• Forged and CNC machined from high-carbon steel for maximum strength and toughness.
• Induction-hardened ring gears ensure long service life and reliable starter engagement.
• Dynamically computer balanced for smooth operation and reliability at high RPM.
• Single-piece construction prevents failure points common in multi-piece designs and ensures efficient heat dissipation.
• Recommended for both spirited street driving and competitive racing environments.
• Manufacturer Part Number: 600480

Fits 1993-1998 Toyota Supra Twin Turbo.

The ACT XACT Streetlite flywheel is designed to significantly improve engine response and acceleration by reducing rotational mass. Engineered for both street and race applications, this flywheel features a one-piece forged construction that provides superior strength compared to multi-piece designs. This one-piece approach ensures uniform heat transfer from the clutch disc, preventing warped inserts or loose ring gears during high-heat operation.

Every XACT flywheel is CNC machined and dynamically computer-balanced to ensure smooth reliability at high RPMs. The ring gears are induction-hardened for maximum service life, while the heat-treated forging provides the toughness required for performance driving. This part delivers a noticeable improvement in throttle response with only a mild increase in gear rattle compared to the OE unit.

• Manufacturer Part Number: 600405
• Construction: One-piece heat-treated forging
• Manufacturing: CNC machined and dynamically balanced
• Ring Gear: Induction-hardened for durability
• Application: Recommended for street and race use

Fits select 1988-2016 Lexus ES250/ES300, Scion tC/xB, and Toyota Camry, Celica, MR2, and RAV4 models. This ACT XACT Prolite flywheel (MPN 600390) is designed to significantly improve engine response and acceleration by reducing rotational mass.

The XACT Prolite is recommended for race use where rapid throttle response is critical. Each flywheel is manufactured from a single-piece chromoly forging, offering superior strength and heat transfer compared to multi-piece designs with separate ring gears or friction surfaces. This construction eliminates the risk of warped inserts or loose hardware, providing uniform heat dissipation across the clutch disc.

• One-piece forged construction for maximum durability and reliability.
• Induction-hardened ring gears for extended service life.
• CNC machined and dynamically computer balanced for smooth high-RPM operation.
• Heat-treated forging provides exceptional toughness under race conditions.
• Reduces gear rattle while providing rapid engine acceleration.
• Manufacturer Part Number: 600390.

Fits 1989-1998 Nissan 240SX (Base, LE, SE, and XE models).

The ACT XACT Streetlite flywheel (600365) is engineered to significantly improve engine response and acceleration by reducing rotational mass. Constructed as a one-piece forging, this flywheel eliminates the failure points common in multi-piece designs, such as warped inserts or loose ring gears. This design also ensures uniform and efficient heat transfer from the clutch disc for consistent performance under load.

Built for both street and race applications, each flywheel is CNC machined and dynamically computer balanced to ensure smooth reliability at high RPMs. The ring gears are induction-hardened for maximum service life, making this a durable upgrade for drivers seeking a more connected throttle feel.

• Manufacturer Part Number: 600365
• Construction: One-piece heat-treated forging
• Finish: Precision CNC machined
• Balancing: Dynamically computer balanced for high RPM
• Durability: Induction-hardened ring gears
• Application: Recommended for street and race use

Fits 1989-1998 Nissan 240SX (Base, LE, SE, XE).

The ACT XACT Flywheel Prolite is engineered to significantly improve engine response and acceleration by reducing rotational inertia. Unlike multi-piece designs that are prone to failure, this one-piece forged unit provides uniform heat transfer from the clutch disc, eliminating common issues such as warped inserts or loose ring gears.

Built for the rigors of high-RPM race use, each flywheel is CNC machined from heat-treated forgings and dynamically computer balanced to ensure vibration-free reliability. The induction-hardened ring gears provide maximum service life, even in demanding performance environments.

• Part Number: 600360
• Material: Heat-treated forged steel
• Construction: One-piece design for maximum strength and toughness
• Manufacturing: CNC machined and dynamically balanced
• Features: Induction-hardened ring gears
• Application: Recommended for race use
• Warranty: Manufacturer one-year warranty

Fits 2000-2009 Honda S2000 Base and CR models.

The ACT XACT Streetlite flywheel (600355) is engineered to provide noticeably improved engine response and faster acceleration by reducing rotational inertia. Unlike multi-piece designs that utilize hardware or inserts, this one-piece forged unit provides uniform heat transfer from the clutch disc to prevent warping and ensure consistent engagement. Each flywheel is CNC machined and dynamically computer balanced to maintain smooth operation at high RPMs.

• Manufactured from heat-treated forgings for superior strength and toughness
• Induction-hardened ring gears provide maximum service life and gear mesh durability
• One-piece construction eliminates the risk of loose ring gears or warped friction inserts
• Precision CNC machined and computer balanced for reliability in high-performance applications
• Designed for both spirited street driving and competitive race use
• Engineered to maintain OE to mild gear rattle levels

Fits 2000-2009 Honda S2000 Base and CR models.

The ACT XACT Flywheel Prolite (MPN 600350) is engineered to significantly reduce rotational inertia, delivering rapid engine response and improved acceleration. Designed specifically for race use and high-performance driving, this one-piece forging replaces the factory unit with a much lighter, more durable alternative that eliminates the failure points associated with multi-piece flywheels, such as warped inserts or loose ring gears.

• One-piece construction provides uniform, efficient heat transfer from the clutch disc to prevent overheating.
• Precision CNC-machined from heat-treated chrome-moly steel for exceptional strength and toughness.
• Induction-hardened ring gears ensure maximum service life and reliable starter engagement.
• Dynamically computer balanced to ensure smooth operation at high-RPM limits.
• Recommended for competitive racing and track applications.

Note: Due to the lightweight design, some mild to moderate gear rattle may occur. This part is backed by ACT's one-year limited warranty.

Fits 2003-2005 Dodge Neon SRT-4.

The ACT XACT Flywheel Streetlite (MPN 600340) is designed to significantly improve engine response and acceleration by reducing rotational mass without sacrificing durability. This one-piece forged unit replaces the heavy factory flywheel, providing more efficient heat transfer from the clutch disc and eliminating common points of failure like warped inserts or loose ring gears. While providing a noticeable performance gain, it maintains drivability for the street while being rugged enough for race conditions.

• One-piece heat-treated forging for maximum strength and uniform heat transfer.
• Induction-hardened ring gears for extended service life.
• CNC machined and dynamically computer balanced for smooth, vibration-free high-RPM operation.
• Recommended for both street and track applications.
• Manufacturer Part Number: 600340.
• Warranty: Backed by a one-year manufacturer warranty.

Fits 2002-2008 Mini Cooper S.

The ACT XACT Streetlite flywheel is engineered to provide noticeably improved engine response and faster acceleration by reducing rotational mass. Constructed from a single-piece heat-treated forging, this flywheel offers superior strength and toughness compared to multi-piece designs. This one-piece approach ensures uniform heat transfer from the clutch disc and eliminates the risk of warped inserts or loose ring gears, making it a reliable choice for both high-performance street use and racing.

• Precision CNC machined from heat-treated forgings for consistent tolerances
• Induction-hardened ring gears for maximum service life and gear mesh durability
• Dynamically computer balanced to ensure smooth reliability at high RPMs
• One-piece construction provides efficient heat dissipation and prevents component failure
• Optimized weight for a balance of quick revving and streetable inertia
• Manufacturer Part Number: 600315
• Backed by a one-year manufacturer warranty

Fits 2002-2011 Acura RSX, TSX, and Honda Civic Si (2.0L / 2.4L).

The ACT XACT Streetlite Flywheel (MPN 600295) is engineered to significantly improve engine response and acceleration by reducing rotational mass without sacrificing durability. Unlike multi-piece designs that can suffer from warped inserts or loose ring gears, this flywheel features a one-piece forged construction. This design ensures uniform heat transfer from the clutch disc and provides a more stable friction surface for both street and race applications.

• Manufactured from heat-treated Chromoly steel forgings for superior strength and toughness
• Induction-hardened ring gears provide maximum service life and gear mesh reliability
• Precision CNC machined and dynamically computer balanced for smooth operation at high RPM
• Noticeably improves throttle response and engine braking
• Recommended for performance street use and amateur racing
• Manufacturer Part Number: 600295

Each ACT flywheel is designed to meet SFI specifications for safety and is backed by a one-year warranty. The XACT Streetlite offers a balance between lightweight performance and streetable mass to minimize the gear rattle often found in ultra-lightweight alternatives.

Fits 1990-2005 Mazda Miata (1.8L). Note: This flywheel must be paired with a 1994 or newer 1.8L clutch kit for proper installation and operation.

The ACT XACT Streetlite flywheel (600290) is engineered to deliver significantly improved engine response and faster acceleration for both street and track use. Unlike multi-piece designs, this one-piece forged chromoly steel unit eliminates the risk of warped inserts or loose ring gears, providing uniform heat transfer and long-term durability at high RPMs.

• One-piece forged construction ensures maximum strength and toughness
• Induction-hardened ring gears for exceptional service life
• Precision CNC-machined and dynamically computer-balanced for smooth high-RPM reliability
• Designed to provide a balance between quick throttle response and street drivability
• Replaces heavier OE flywheels with a performance-focused heat-treated design
• Manufacturer Part Number: 600290
• Backed by a one-year manufacturer warranty

Fits 1990-2005 Mazda Miata models (1.8L). Please note: 1990-1993 models must use a 1.8L clutch to accommodate this flywheel.

The ACT XACT Prolite flywheel (MPN 600255) is engineered to dramatically improve engine response and acceleration by reducing rotational mass. Designed primarily for race use, this flywheel features a one-piece construction that provides uniform heat transfer from the clutch disc, eliminating common failure points such as warped inserts or loose ring gears found in multi-piece designs.

• Forged, CNC machined, and dynamically computer-balanced for smooth reliability at high RPM.
• Heat-treated forging provides exceptional strength and toughness.
• Induction-hardened ring gears ensure maximum service life.
• Provides significantly faster throttle response compared to heavy factory components.
• One-piece design ensures superior durability and efficient cooling.

Fits select 2004-2021 Subaru WRX STI, Impreza WRX STI, and 2007-2009 Legacy GT spec.B.

The ACT XACT Flywheel Prolite (600240) is engineered for the demands of race use, providing a significant reduction in rotational mass for dramatically improved engine response and acceleration. Unlike multi-piece designs that are prone to failure, this flywheel features a one-piece construction forged from high-quality steel for maximum toughness and uniform heat transfer from the clutch disc.

Precision-engineered for reliability at high RPM, each flywheel is CNC machined and dynamically computer balanced. The induction-hardened ring gears ensure a long service life and consistent starter engagement, while the heat-treated forging eliminates issues like warped inserts or loose ring gears.

• One-piece heat-treated forging for superior strength and durability
• Induction-hardened ring gears for maximum gear life
• CNC machined and dynamically computer balanced for high-RPM reliability
• Dramatically reduces rotational inertia for faster throttle response
• Recommended for race use; may cause mild to moderate gear rattle
• Manufacturer Part Number: 600240

Fits select 2004-2021 Subaru Impreza WRX STI, WRX STI, and Legacy GT spec.B.

The ACT XACT Flywheel Streetlite (600235) is engineered to significantly improve engine response and acceleration by reducing rotational mass. Constructed from a single piece of heat-treated forging, this flywheel ensures uniform heat transfer from the clutch disc and eliminates the failure points associated with multi-piece designs, such as warped inserts or loose ring gears.

• Forged, CNC machined, and dynamically computer balanced for smooth high-RPM reliability
• Induction-hardened ring gears for maximum service life
• One-piece construction for strength and efficient heat dissipation
• Recommended for both street and race applications
• Manufacturer Part Number: 600235
• Backed by a one-year warranty

Vehicle Fitment:

The ACT XACT Prolite flywheel is engineered to provide maximum engine response and rapid acceleration for competitive driving. By significantly reducing rotational mass, this ultra-lightweight flywheel allows the engine to reach its powerband faster, making it an essential upgrade for race-focused builds.

Constructed from a single-piece chromoly steel forging, the XACT Prolite is CNC machined and heat-treated for exceptional strength and toughness. This one-piece design eliminates the common failure points found in multi-piece flywheels, such as warped inserts or loose ring gears, while ensuring uniform heat transfer away from the clutch disc. Each unit is dynamically computer-balanced to ensure smooth, vibration-free operation at high RPMs.

• Materials: Heat-treated forged steel construction for maximum durability
• Manufacturing: CNC machined and dynamically balanced for high-RPM reliability
• Ring Gear: Induction-hardened gears for long service life
• Usage: Recommended for race use; may result in mild to moderate gear rattle
• Part Number: 600230

Built with ACT’s "Excellence in Performance" philosophy, this flywheel replaces heavy factory units with a precision-engineered component designed to withstand the rigors of the track.

The ACT XACT Streetlite Flywheel (MPN: 600225) is engineered for drivers seeking noticeably improved engine response and faster acceleration without sacrificing daily driveability. This one-piece forged flywheel replaces heavy factory units with a significantly lighter, more durable design suitable for both street and race applications.

Constructed from heat-treated forgings, the XACT Streetlite offers exceptional strength and toughness. Its one-piece design eliminates the common failure points of multi-piece flywheels, such as warped inserts or loose ring gears, while providing uniform heat transfer from the clutch disc. Each unit is CNC machined to precise tolerances and dynamically computer balanced to ensure smooth operation and reliability at high RPMs.

• Construction: One-piece heat-treated forging for maximum strength and toughness.
• Ring Gear: Induction-hardened gears for maximum service life.
• Balance: Dynamically computer balanced for high-RPM reliability.
• Performance: Significantly reduced rotational mass for quicker throttle response and acceleration.
• Application: Recommended for street and race use; may produce OE to mild gear rattle.
• Manufacturer Part Number: 600225

Backed by a one-year warranty, this flywheel provides a precise, high-strength solution for performance-oriented drivetrain builds.

Fits 2003-2006 Nissan 350Z and Infiniti G35 models.

The ACT XACT Streetlite Flywheel (600215) is engineered to significantly improve engine response and acceleration by reducing rotational mass. Constructed from a single piece of heat-treated forged steel, this flywheel provides superior strength and uniform heat transfer compared to multi-piece designs, eliminating common failure points such as warped inserts or loose ring gears.

• Precision CNC-machined for exact tolerances and reliable fitment
• Induction-hardened ring gears provide maximum durability for the starter teeth
• Dynamically computer balanced to ensure smooth operation at high RPMs
• Recommended for high-performance street use and competitive racing
• Delivers a noticeable improvement in throttle response with OE to mild gear rattle
• Manufacturer Part Number: 600215

Each ACT flywheel is designed for long-term reliability and is backed by a one-year warranty. This Streetlite version offers a balance between lightweight performance and street driveability.

Fits 2003-2006 Mitsubishi Lancer Evolution, including Evolution MR, RS, and SE submodels.

The ACT XACT Flywheel Prolite (600210) is engineered to significantly reduce rotational mass, delivering immediate engine response and faster acceleration. Designed specifically for high-performance and race environments, this flywheel is manufactured from heat-treated forgings for superior strength and toughness compared to standard cast or multi-piece units.

Its single-piece construction eliminates common failure points like loose ring gears or warped inserts, while ensuring uniform and efficient heat transfer from the clutch disc. Every XACT flywheel is precision CNC-machined and dynamically computer-balanced to ensure smooth operation and reliability at high RPMs.

• Forged one-piece construction for maximum structural integrity
• Induction-hardened ring gears for extended service life
• CNC-machined to precise tolerances and dynamically balanced
• Significant reduction in MOI (Moment of Inertia) for improved throttle response
• Manufacturer Part Number: 600210

Fits 2003-2006 Mitsubishi Lancer Evolution (including MR, RS, and SE submodels).

The ACT XACT Flywheel Streetlite (MPN 600205) is designed to provide noticeably improved engine response and faster acceleration. Engineered for both street and race use, this flywheel replaces the factory unit with a one-piece forged construction that ensures uniform heat transfer from the clutch disc. This design eliminates common failure points such as warped inserts or loose ring gears found in multi-piece alternatives.

• Material: Heat-treated forging for superior strength and toughness.
• Durability: Features induction-hardened ring gears for maximum service life.
• Precision Engineering: CNC machined and dynamically computer balanced to ensure smooth reliability at high RPM.
• Installation: Direct replacement for OE flywheel with factory-level fitment.
• Part Number: 600205

Fits 1990-2002 Honda Accord (DX, EX, LX, SE) and 1992-2001 Honda Prelude (Base, S, SE, Si, Si 4WS, Type SH, VTEC).

The ACT XACT Streetlite flywheel is designed to significantly improve engine response and acceleration by reducing rotational mass. Unlike flywheels with bolt-on friction surfaces, this one-piece forged unit ensures uniform heat transfer from the clutch disc, eliminating the risk of warped inserts or loose ring gears. Precision-engineered for both street and track applications, it provides the durability required for high-RPM reliability while maintaining manageable gear rattle.

• Manufactured from heat-treated forging for maximum strength and toughness
• Induction-hardened ring gears for extended service life
• CNC machined and dynamically computer balanced for smooth operation
• One-piece construction for superior heat dissipation and structural integrity
• Recommended for street and race use
• Manufacturer Part Number: 600190

Fits select 1991-2005 Saab 9-2X Aero and Subaru Baja Turbo, Forester XT, Impreza WRX, and Legacy Sport models. This ACT XACT Flywheel Streetlite (600175) is designed to significantly improve engine response and acceleration while maintaining the durability required for both spirited street driving and race applications.

Constructed from heat-treated forged chromoly steel, this one-piece flywheel eliminates the common failure points of multi-piece designs, such as warped inserts or loose ring gears. The single-piece design provides uniform and efficient heat transfer from the clutch disc, preventing hot spots and ensuring consistent performance. Each unit is CNC machined for precision and dynamically computer balanced to ensure smooth operation at high RPMs.

• One-piece forged construction for maximum strength and toughness
• Induction-hardened ring gears for extended service life
• Precision CNC machined and dynamically computer balanced
• Recommended for street and race use
• Improved throttle response and faster acceleration
• Manufacturer Part Number: 600175

Fits select 1991-2005 Subaru Impreza WRX, Forester XT, Baja Turbo, Legacy Sport, and Saab 9-2X Aero.

The ACT XACT Prolite Flywheel (MPN 600170) is engineered specifically for racing and high-performance applications where rapid engine response and acceleration are critical. This flywheel features a one-piece forged construction that eliminates common failure points found in multi-piece designs, such as warped inserts or loose ring gears. This design ensures uniform, efficient heat transfer away from the clutch disc to maintain consistent performance under load.

Each flywheel is CNC machined from heat-treated forgings for maximum toughness and dynamically computer-balanced to ensure smooth operation at high RPMs. For long-term durability, the ring gears are induction-hardened to prevent premature wear.

• One-piece forged construction for superior strength and heat dissipation
• Induction-hardened ring gears for maximum service life
• CNC machined and dynamically computer balanced for high-RPM reliability
• Dramatically improves throttle response and acceleration
• Recommended for race use (may cause mild to moderate gear rattle)
• Manufacturer Part Number: 600170

Fits select 1992-1999 Eagle Talon, Mitsubishi Eclipse, and Plymouth Laser models.

The ACT XACT Flywheel Streetlite (600165) is engineered to provide significantly improved engine response and faster acceleration. Designed for both street and race applications, this flywheel utilizes a one-piece forged construction that eliminates the risk of warped inserts or loose ring gears common in multi-piece alternatives. The solid design facilitates uniform heat transfer from the clutch disc, maintaining consistent performance under high thermal loads.

Each flywheel is CNC machined from high-strength steel forgings, heat-treated for maximum toughness, and finished with induction-hardened ring gears for long-term reliability. To ensure smooth operation at high RPMs, every XACT flywheel is dynamically computer balanced before leaving the factory.

• Manufacturer Part Number: 600165
• Construction: One-piece forged steel for strength and heat dissipation
• Manufacturing: CNC machined and dynamically computer balanced
• Ring Gear: Induction-hardened for maximum service life
• Application: Suitable for high-performance street and track use

Vehicle Fitment

Fits 1992-1999 Eagle Talon TSi, Mitsubishi Eclipse GSX, and Plymouth Laser RS.

The ACT XACT Flywheel Streetlite is engineered to significantly improve engine response and acceleration by reducing rotational mass without sacrificing the durability required for high-performance street or track use. Unlike multi-piece flywheels that can suffer from warped inserts or loose ring gears, this unit features a robust one-piece construction. Forged from high-strength materials and CNC machined for precision, it provides uniform heat transfer from the clutch disc to prevent hotspots and premature wear.

• MPN: 600160
• Construction: One-piece heat-treated forging for maximum strength and toughness
• Ring Gear: Induction-hardened for long-term service life and reliable engagement
• Balancing: Dynamically computer-balanced to ensure smooth operation at high RPM
• Performance: Noticeably quicker revving with OE to mild gear rattle
• Recommended Use: Suitable for both street and race applications

Fits 1990-1992 Eagle Talon, Mitsubishi Eclipse, and Plymouth Laser.

The ACT XACT Flywheel Streetlite (MPN: 600155) is engineered to provide significantly improved engine response and faster acceleration compared to heavy factory units. Designed for both street and race applications, this flywheel offers a significant reduction in rotating mass while maintaining the strength required for high-performance driving.

Constructed from a single piece of heat-treated Chrome-moly steel forging, the XACT Streetlite eliminates the common failure points associated with multi-piece designs, such as warped inserts or loose ring gears. The induction-hardened ring gears ensure maximum longevity, while precision CNC machining and dynamic computer balancing guarantee smooth operation and reliability at high RPMs.

• Precision CNC machined from heat-treated forgings for superior strength and toughness
• Induction-hardened ring gears for maximum service life
• One-piece construction provides uniform heat transfer and eliminates loose components
• Dynamically computer balanced for smooth high-RPM performance
• Recommended for street and performance racing applications
• Manufacturer Part Number: 600155

Fits select 1990-1992 Eagle Talon TSi, Mitsubishi Eclipse GSX, Mitsubishi Galant VR-4, and Plymouth Laser RS.

The ACT XACT Streetlite Flywheel (part number 600150) is designed to significantly improve engine response and acceleration by reducing rotational mass without sacrificing the drivability required for street use. Unlike multi-piece flywheels that utilize bolted-on friction surfaces, ACT's one-piece design is precision-forged for superior strength and toughness. This monolithic construction ensures uniform heat transfer from the clutch disc and eliminates the risk of warped inserts or loose ring gears.

Each flywheel is CNC machined to exacting tolerances and dynamically computer-balanced to ensure smooth, vibration-free operation even at high RPM. The ring gears are induction-hardened for maximum service life, making this an ideal upgrade for both spirited street driving and competitive racing environments.

• Forged from high-strength Chromoly steel for maximum durability
• Induction-hardened ring gears provide long-term reliability
• One-piece construction facilitates efficient heat dissipation and prevents component failure
• CNC machined and dynamically balanced for high-RPM stability
• Noticeably improves throttle response and acceleration
• Manufacturer Part Number: 600150

Fits 2004-2011 Mazda RX-8 (Base, R3, Shinka, Sport, Grand Touring, Touring, and 40th Anniversary Edition).

The ACT XACT Streetlite Flywheel Kit (MPN: 600145-03) is engineered for performance-oriented drivers who demand quicker throttle response and increased durability. By significantly reducing rotating mass compared to the factory unit, this flywheel lowers inertia, allowing the rotary engine to rev more freely. This kit is a complete solution, including the essential CW03 counterweight required for proper installation on Mazda rotary applications.

• Durable Construction: Materials are properly distributed to ensure maximum strength, high heat tolerance, and rigidity under load.
• Optimized Performance: Preferred for street or drag racing where reduced inertia leads to improved acceleration.
• Serviceable Design: XACT flywheels are fully serviceable and can be resurfaced, eliminating the need to buy a replacement part during clutch maintenance.
• Installation Hardware: Includes the ACT CW03 counterweight necessary for balanced operation.
• Manufacturer Part Number: 600145-03

Backed by a one-year manufacturer warranty.

Fits 1989-1995 Mazda RX-7 models (Turbo, Base, R1, R2, and Touring).

The ACT XACT Streetlite flywheel kit (600145-02) is engineered to reduce rotational inertia, providing significantly improved throttle response and acceleration compared to the heavy factory unit. Designed specifically for street use and drag racing, this flywheel features a optimized material distribution that ensures maximum strength, high heat tolerance, and structural rigidity under high-RPM conditions.

This kit includes the necessary ACT CW02 counterweight, which is required for proper installation and engine balance on these rotary applications. Unlike many lightweight alternatives, XACT flywheels are fully serviceable and can be resurfaced, extending the life of the component without the need for a full replacement.

• Manufacturer Part Number: 600145-02
• Series: XACT Streetlite
• Included Hardware: CW02 Counterweight
• Application: Optimized for street and drag racing
• Serviceability: Can be resurfaced for extended service life
• Performance: Lower inertia for faster revving and improved power delivery

Fits select 1986-2011 Mazda RX-7 and RX-8 (Turbo and naturally aspirated rotary engines).

The ACT XACT Streetlite flywheel (600145) is engineered to significantly improve engine response and acceleration by reducing rotational mass. Constructed as a single-piece forging rather than a multi-piece assembly, this flywheel eliminates common failure points like loose ring gears or warped inserts. This design also provides more uniform and efficient heat transfer from the clutch disc, ensuring consistent performance during spirited driving or track use.

Every Streetlite flywheel is CNC machined from heat-treated chromoly steel and induction-hardened for maximum durability. To ensure smooth operation at high RPMs, each unit is dynamically computer balanced before leaving the factory.

• One-piece forged construction for superior strength and toughness
• Induction-hardened ring gears for extended service life
• Forged and CNC machined for precise tolerances and high-RPM reliability
• Dynamically balanced to eliminate vibration
• Noticeably improved throttle response and acceleration with OE to mild gear rattle
• Recommended for both street and race applications

The ACT XACT Prolite Flywheel Kit (600140-03) provides the ultimate reduction in rotational inertia for select 2004-2011 Mazda RX-8 models. As ACT's lightest flywheel offering, the Prolite series is engineered specifically for competitive road racing and rally applications where rapid throttle response and maximum acceleration are critical. This kit comes complete with the necessary CW03 counterweight required for installation on the Mazda rotary engine.

Constructed with materials precision-distributed for maximum strength and rigidity, this flywheel offers exceptional heat tolerance under high-stress conditions. Unlike many lightweight alternatives, XACT flywheels are fully serviceable and can be resurfaced as needed, eliminating the cost of a full replacement during clutch service. Note that while this flywheel provides superior engine response, the significantly reduced mass results in decreased low-speed drivability compared to stock units.

• Fits 2004-2011 Mazda RX-8 (All Trims)
• Lowest inertia design for optimized acceleration and engine braking
• Includes ACT CW03 counterweight for proper installation
• High-strength construction with superior heat tolerance
• Serviceable design allows for resurfacing
• Manufacturer Part Number: 600140-03