Fits 2004-2005 Subaru Forester, Subaru Baja Turbo, and Saab 9-2X Aero.

The Fidanza 110221 aluminum flywheel is engineered to significantly reduce rotating mass, weighing 40-60% less than the stock factory unit. By lowering the Moment of Inertia (MOI), this flywheel frees up horsepower and provides noticeably quicker throttle response and faster acceleration. The body is CNC-machined from high-strength billet 6061 T6 or 2024 T4 aluminum for durability under high-stress performance conditions.

This flywheel features a bolt-on replaceable 1050 steel friction plate, allowing you to refresh the clutch surface without replacing the entire assembly. The hardened steel ring gear is also replaceable, ensuring a long service life for your Subaru or Saab drivetrain.

• MPN: 110221
• Body Material: Billet 6061 T6 or 2024 T4 Aluminum
• Friction Surface: Heat-treated, replaceable 1050 steel plate
• Ring Gear: Replaceable hardened 1050 steel
• Fasteners: Military spec for maximum reliability and strength
• Weight: 40-60% lighter than OEM for reduced MOI
• Installation: Includes stepped dowels for precise alignment on most applications

The EXEDY Lightweight Sport Flywheel (ZF505A) is engineered to reduce rotational mass, providing significantly lower inertia and improved engine response compared to heavy factory components. Designed for street performance and competitive environments like drag racing, autocross, and rally, this flywheel balances weight reduction with the high thermal capacity needed to handle increased heat loads.

Constructed from a solid one-piece billet, this flywheel is built for structural integrity and durability under high-RPM conditions, making it an ideal choice for light to moderately tuned vehicles.

• Manufacturer Part Number: ZF505A
• Solid one-piece billet construction for maximum durability
• Reduced rotational mass for faster throttle response and quicker shifts
• High thermal capacity to resist warping and manage heat during aggressive use
• Designed for street, drag, autocross, and rally applications

Fits select 2004-2011 Mazda 3, 5, and MX-5 Miata.

The Exedy ZF501A Lightweight Flywheel is engineered to reduce rotational inertia, providing significantly sharper throttle response and faster acceleration. Designed for street performance as well as competitive drag racing, autocross, and rally events, this flywheel is manufactured from solid one-piece billet chromoly steel or chromoly steel forgings for exceptional strength and thermal capacity.

Unlike many aluminum flywheels that utilize a pressed-on steel ring gear, Exedy integrates the ring gear teeth directly into the flywheel body. This one-piece construction eliminates the risk of ring gear separation caused by different expansion coefficients between aluminum and steel. The specialized design also optimizes airflow to improve clutch cooling under high-load conditions.

• Manufacturer Part Number: ZF501A
• Material: Billet Chromoly Steel
• SFI 1.1 Certified for competition use
• Engineering tested to 15,000-18,000 RPM
• One-piece design with integrated ring gear teeth
• Enhanced airflow for superior clutch cooling

Fits select 1988-2005 Honda Civic, CRX, and Civic del Sol models.

The Exedy HF501 lightweight flywheel is engineered to reduce rotating mass and inertia, delivering significantly sharper throttle response and faster acceleration. Designed for applications ranging from daily street driving to drag racing and autocross, this flywheel is CNC-machined from a solid one-piece chromoly steel forging. Unlike aluminum flywheels with pressed-on steel ring gears, the HF501 features integrated gear teeth to eliminate the risk of ring gear separation caused by differing thermal expansion rates.

• Material: Solid one-piece billet chromoly steel for high thermal capacity
• Safety: SFI Certified and engineered to withstand 15,000-18,000 RPM
• Performance: Reduced weight and inertia for improved engine response and acceleration
• Design: Specialized airflow features to enhance clutch cooling and longevity
• Manufacturer Part Number: HF501

Fits select 2002-2015 Acura RSX, TSX and Honda Accord, Civic models.

The Exedy HF02 lightweight flywheel is engineered to reduce rotational inertia, providing significantly sharper throttle response and quicker acceleration. Unlike multi-piece aluminum flywheels where the ring gear is pressed on, this Exedy flywheel is manufactured from a solid one-piece billet chromoly steel forging. This monolithic construction eliminates the risk of ring gear separation caused by varying expansion coefficients between aluminum and steel, ensuring maximum durability under high-stress conditions.

Designed for street performance, drag racing, autocross, and rally, these flywheels incorporate specialized design features to enhance airflow and cooling for the clutch assembly. Every HF02 unit is SFI-certified and has been rigorously tested to sustain speeds between 15,000 and 18,000 RPM without failure.

• Solid one-piece billet chromoly steel construction for maximum integrity
• Reduced mass and low-inertia design for improved engine response
• Integrated ring gear teeth prevent component separation
• SFI approved and tested to 15,000-18,000 RPM
• High thermal capacity to handle heat during aggressive shifting
• Manufacturer Part Number: HF02

Fits 1990-2001 Acura Integra and select 1994-2000 Honda Civic Si and del Sol VTEC models. This Exedy HF01 lightweight flywheel is engineered to significantly reduce rotational inertia, delivering sharper throttle response and faster revving for street, autocross, and drag racing applications.

Unlike multi-piece aluminum flywheels with pressed-on ring gears that can separate under extreme thermal stress, Exedy flywheels are manufactured from a solid piece of billet chromoly steel or high-strength forgings. This monolithic design ensures the ring gear teeth remain an integral part of the flywheel for maximum safety and reliability. Each unit features a specialized design to enhance airflow, helping to cool the clutch assembly during aggressive driving. Every Exedy racing flywheel is SFI-certified and has passed rigorous engineering tests up to 15,000–18,000 RPM.

• One-piece billet chromoly steel construction eliminates ring gear separation
• SFI Certified and tested for safety up to 18,000 RPM
• Reduced weight and low inertia for improved engine response
• Integrated cooling features to maintain clutch performance
• Precision balanced to reduce vibration and drivetrain wear
• Manufacturer Part Number: HF01

Fits 2009-2010 Acura TSX (L4).

The Exedy HCF001 OE Replacement Flywheel is engineered to restore the smooth engagement and reliable operation of your vehicle's drivetrain. As a leading supplier to global vehicle manufacturers, Exedy produces flywheels that meet or exceed factory specifications for balance, surface finish, and heat dissipation. When replacing a worn clutch, installing a new flywheel ensures a consistent friction surface, preventing the chatter and premature wear often caused by heat-checked or improperly resurfaced original components.

• Precision-machined friction surface for optimal clutch bite and longevity
• Engineered to exact OEM dimensions for a direct-bolt installation to the crankshaft
• Dynamically balanced to eliminate drivetrain vibrations and protect engine bearings
• High-quality casting designed for superior thermal management and durability
• Manufacturer Part Number: HCF001

Fits 2003-2006 Subaru Baja (H4).

Maintain factory-smooth clutch engagement and engine balance with the Exedy OE replacement flywheel. Designed as a direct-fit component for manual transmission models, this flywheel provides the precise surface finish and dimensional tolerances required for reliable shifting and drivetrain longevity. This unit replaces heat-checked, warped, or thin factory flywheels that can no longer be resurfaced, ensuring your new clutch kit has a perfect mating surface.

• Direct-fit replacement for the original equipment flywheel
• Precision machined and balanced to meet or exceed Subaru factory specifications
• Maintains original engine rotational mass and drivability characteristics
• High-quality construction designed for long-term heat dissipation
• Manufacturer Part Number: FWSBL02FF

Fits 1967-1971 Chevrolet Bel Air (V8).

This Exedy OE replacement flywheel is engineered to restore the smooth clutch engagement and reliable performance your classic drivetrain requires. Designed as a direct-fit replacement for worn, glazed, or cracked factory flywheels, this component ensures proper balance and optimal heat dissipation to prevent clutch chatter and premature wear. Each unit is manufactured to precise tolerances, providing a consistent friction surface that meets or exceeds original equipment standards for durability and fitment.

• Direct-fit replacement for factory mounting points
• Precision machined for smooth shifting and consistent engagement
• Optimized thermal capacity to handle the heat of daily driving and heavy loads
• Engineered specifically for V8 engine applications
• Manufacturer Part Number: FWGM101

Fits select 2005-2016 Saab 9-2X and Subaru Forester, Impreza, Legacy, and WRX models.

The Exedy FF502A lightweight flywheel is engineered to reduce rotational mass and inertia, delivering significantly improved engine response and quicker acceleration. Unlike typical aluminum flywheels where the ring gear is pressed on, Exedy flywheels feature a one-piece solid billet chromoly steel construction with integrated ring gear teeth. This design eliminates the risk of ring gear separation caused by differing thermal expansion rates between materials.

Designed for street performance and competition use—including drag racing, autocross, and rally—these flywheels are track-tested and SFI certified to 15,000–18,000 RPM. The solid construction also makes them an ideal replacement for vehicles originally equipped with heavy or failure-prone dual-mass flywheels. Many applications feature specialized airflow designs to enhance clutch cooling during high-stress operation.

• Material: One-piece billet chromoly steel for maximum thermal capacity
• SFI Certified for safety and sanctioned competition use
• Engineering tested to 15,000–18,000 RPM
• Integrated ring gear teeth for maximum durability
• Reduced rotational inertia for faster throttle response
• Manufacturer Part Number: FF502A

Fits 2004-2019 Subaru Impreza WRX STI, WRX STI, and 2006-2009 Legacy GT spec.B models.

The Exedy FF501A Lightweight Flywheel is engineered to reduce rotational inertia, delivering significantly faster engine response and improved acceleration for high-performance Subaru applications. Designed for drag racing, autocross, rally, and spirited street use, these flywheels provide the high thermal capacity needed to handle extreme driving conditions without the risk of ring gear separation.

Unlike aluminum flywheels where the ring gear is pressed onto the body, Exedy flywheels are manufactured from solid one-piece billet chromoly steel or chromoly steel forgings. This design integrates the ring gear teeth directly into the flywheel, ensuring structural integrity even under the expansion coefficients of high-heat environments. The specialized design also promotes enhanced airflow to keep your clutch assembly cool and performing consistently.

• Manufacturer Part Number: FF501A
• Material: One-piece billet chromoly steel / chromoly forgings
• Safety Certification: SFI Certified
• RPM Rating: Engineering tested to 15,000–18,000 RPM
• Performance: Reduced weight and inertia for improved throttle response
• Durability: Integrated ring gear prevents gear separation

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

The Exedy FF01 lightweight flywheel is engineered to reduce rotational inertia, providing significantly improved engine response and faster throttle transitions. Unlike aluminum flywheels where the ring gear is pressed on—risking separation due to differing thermal expansion rates—the Exedy FF01 is manufactured from solid one-piece billet chromoly steel or chromoly forgings. This construction integrates the ring gear teeth directly into the flywheel body for maximum structural integrity under high-heat conditions.

Designed for street use, autocross, rally, and drag racing, these flywheels feature specialized cooling paths to enhance airflow across the clutch assembly. Each unit is SFI-certified and engineered to withstand extreme rotational forces, having passed testing at speeds ranging from 15,000 to 18,000 RPM.

• Manufacturer Part Number: FF01
• Material: Billet Chromoly Steel / Forged Chromoly
• Certification: SFI Approved
• Engineered for high thermal capacity and low inertia
• Integrated ring gear teeth for maximum safety and durability
• Precision balanced to reduce vibration and driveline wear

Fits select 1996-2016 Ford Mustang V8 models, including GT, Boss 302, Bullitt, Mach 1, and SVT Cobra.

The Exedy EF503A Lightweight Flywheel is engineered to reduce rotating mass and inertia, delivering significantly sharper engine response and quicker revving. Manufactured from high-strength one-piece billet chromoly steel or chromoly steel forgings, this flywheel is built to withstand the rigors of drag racing, autocross, and rally events while remaining perfectly suitable for street performance. Unlike aluminum flywheels that use a pressed-on steel ring gear, this Exedy unit features integrated ring gear teeth to eliminate the risk of separation caused by thermal expansion.

This 6-bolt flywheel design incorporates specialized airflow features to enhance clutch cooling during high-performance use. It serves as a durable, solid replacement for vehicles originally equipped with a dual-mass flywheel. Every unit is SFI certified and has passed engineering burst tests up to 18,000 RPM, ensuring safety and reliability in high-revving applications.

• Manufacturer Part Number: EF503A
• Material: One-piece Billet Chromoly Steel
• Mounting: 6-Bolt crank pattern
• Certification: SFI Approved
• RPM Rating: Tested to 15,000-18,000 RPM
• Application: Street, Drag, Autocross, and Rally

Fits select 1996-2017 Ford Mustang models (5.0L), including GT, SVT Cobra, Boss 302, Mach 1, and Shelby GT500.

The EXEDY Racing Lightweight Flywheel is engineered to reduce weight and inertia for significantly faster engine response and improved acceleration. Manufactured from one-piece billet chromoly steel or precision chromoly forgings, this flywheel provides the high thermal capacity required for the extreme demands of drag racing, autocross, and rally events, while remaining durable enough for street performance.

Unlike aluminum flywheels where the ring gear is pressed on and prone to separation, EXEDY flywheels feature ring gear teeth integrated directly into the one-piece design. This construction ensures maximum reliability under high-heat conditions and improves airflow for better clutch cooling. Every flywheel is SFI certified and has passed rigorous engineering tests to withstand speeds of 15,000 to 18,000 RPM.

• Material: One-piece billet chromoly steel / chromoly steel forgings
• Fitment: 8-bolt crank pattern
• Safety: SFI Certified for racing use
• Performance: Reduced inertia for improved throttle response
• Durability: Tested to 15,000-18,000 RPM with integrated ring gear
• Manufacturer Part Number: EF502A

Fits select 2007-2017 Nissan 350Z and 370Z, and 2007-2013 Infiniti G35 and G37 models. This Competition Clutch nodular iron flywheel offers a high-strength, cost-effective alternative to the labor-intensive process of resurfacing a worn factory flywheel. Designed as a direct bolt-in unit, this single mass flywheel (SMF) provides superior durability compared to standard OEM components, making it an essential upgrade during any clutch service.

Constructed from high-grade nodular iron, this unit is engineered to withstand the thermal and mechanical stresses of performance driving while maintaining smooth engagement. By replacing a damaged or heat-checked factory unit with this precision-manufactured component, you ensure a flat, true friction surface for your new clutch kit to maximize torque transfer and longevity.

• Material: High-strength nodular iron
• Weight: 25.3 lbs
• Design: Single Mass Flywheel (SMF)
• Fitment Type: Direct bolt-in OE replacement
• Manufacturer Part Number: BD-06073-115

Fits select 2003-2007 Nissan 350Z and Infiniti G35 models.

This Competition Clutch single-mass flywheel (SMF) is engineered as a high-strength, direct bolt-in replacement for the factory unit. Manufactured from nodular iron, this flywheel offers significantly higher tensile strength than standard cast iron alternatives, providing a durable foundation for your driveline. Rather than risking the inconsistencies of resurfacing a worn OE flywheel during a clutch service, this 25.6lb unit ensures a clean, flat mating surface for optimal engagement and longevity.

• Manufacturer Part Number: BD-06072-116
• Material: High-strength Nodular Iron
• Type: Single Mass Flywheel (SMF)
• Weight: 25.6 lbs
• Installation: Direct bolt-in; replaces factory flywheel

Fits 2002-2011 Acura RSX and Honda Civic (Base, Si, Type-S, and MUGEN Si).

Engineered for high-performance environments, the Competition Clutch Ultra Lightweight Steel Flywheel (STU series) is a critical upgrade for forced induction, track, and rally applications. This 11lb flywheel is precision-machined to reduce rotational mass, providing significantly faster throttle response and quicker revving capabilities. It is optimized for Stage 3 and higher clutch kits where performance and durability are paramount.

• Material: 4140 Forged Steel
• Construction: Durable one-piece design
• Weight: 11 lbs
• Series: STU (Ultra Lightweight)
• Manufacturer Part Number: 2-800-STU
• Applications: Recommended for forced induction, track, and rally racing

Vehicle Fitment

Fits select 2002-2011 Acura RSX (Base/Type-S) and Honda Civic Si (including MUGEN Si).

The Competition Clutch Lightweight Steel Flywheel (ST Series) is engineered for naturally aspirated and street-driven performance. Weighing 11.5 lbs, this flywheel strikes an ideal balance between quicker engine response and the rotational mass needed to preserve low-end torque and daily driveability. It is a one-piece design manufactured from 4140 forged steel, providing superior durability compared to cast OE components.

This flywheel is highly recommended for Stage 1 and Stage 2 clutch applications to optimize power transfer and shifting efficiency.

• Manufacturer Part Number: 2-800-ST
• Material: 4140 Forged Steel
• Weight: 11.5 lbs
• Design: One-piece construction
• Series: ST (Lightweight Steel)

Vehicle Fitment:

• 2002-2006 Acura RSX Base
• 2002-2006 Acura RSX Type-S
• 2008 Honda Civic MUGEN Si
• 2002-2011 Honda Civic Si

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

The Competition Clutch Ultra Lightweight Steel Flywheel (STU) is engineered to reduce rotational mass for significantly faster engine response and quicker revving capabilities. This one-piece flywheel is precision machined from 4140 forged steel, providing superior durability compared to cast units. Weighing in at 10.28 lbs, it is specifically recommended for high-performance applications including forced induction, track, and rally racing. It is ideally paired with Stage 3 and higher clutch systems.

• Manufacturer Part Number: 2-760T-STU
• Material: 4140 Forged Steel
• Design: One-piece construction
• Weight: 10.28 lbs
• Application: Track, Rally, and Forced Induction
• Clutch Match: Stage 3 and higher

Vehicle Fitment

Fits 1985-2001 Nissan Maxima and 1996-1999 Infiniti I30 models. This Competition Clutch Ultra Lightweight Steel Flywheel (STU suffix) is engineered for high-demand environments, including forced induction, track, and rally racing applications. By utilizing a one-piece 4140 forged steel construction, this flywheel significantly reduces rotational mass to enable quicker engine revving and improved throttle response.

Specifically designed to handle the increased torque loads of Stage 3 and higher clutch kits, this 10.28lb flywheel offers superior durability compared to cast or multi-piece alternatives. The precision-machined surface ensures consistent friction engagement and heat dissipation during aggressive driving.

• Manufacturer Part Number: 2-760-STU
• Material: 4140 Forged Steel
• Weight: 10.28 lbs
• Design: One-piece construction for maximum structural integrity
• Application: Optimized for track, rally, and forced induction setups
• Compatibility: Recommended for use with Stage 3 and higher clutch applications

Fits 1994-2005 Mazda Miata (1.8L) including Base, LS, SE, and Mazdaspeed models.

The Competition Clutch Ultra Lightweight Steel Flywheel (STU series) is engineered to reduce rotational mass for significantly faster engine revving and improved throttle response. Precision-machined from 4140 forged steel, this one-piece flywheel offers superior structural integrity compared to cast or two-piece designs. Weighing approximately 11 lbs, it is specifically recommended for high-performance applications including forced induction, track, and rally racing, and is best paired with Stage 3 or higher clutch kits.

• Manufacturer Part Number: 2-746-STU
• Weight: 11 lbs
• Material: 4140 Forged Steel
• Design: One-piece forged construction
• Performance: Recommended for forced induction and track use
• Clutch Match: Best suited for Stage 3 and higher clutch applications

Fits 1994-2005 Mazda Miata across all trims including Base, LS, M Edition, SE, and Mazdaspeed models.

The Competition Clutch Lightweight Steel Flywheel (ST series) is engineered for naturally aspirated and street-driven vehicles where maintaining low-end torque and factory-like driveability is a priority. Weighing 13 lbs, this flywheel provides a significant reduction in rotational mass over the OEM unit, facilitating quicker throttle response and faster revving without the aggressive chatter or stalling risks associated with ultra-lightweight racing flywheels.

Constructed as a rigid one-piece design from high-tensile 4140 forged steel, this component offers superior strength and heat dissipation compared to cast iron alternatives. It is specifically designed to complement Stage 1 and Stage 2 clutch applications for a balanced, high-performance street setup.

• Manufacturer Part Number: 2-746-ST
• Weight: 13 lbs
• Material: 4140 Forged Steel
• Design: One-piece forged construction
• Suitability: Recommended for street and naturally aspirated applications
• Compatibility: Ideal for Stage 1 and Stage 2 clutch kits

Fits select 1989-2011 Mazda RX-7 and RX-8 models including Turbo, Base, R1, R2, Touring, Grand Touring, R3, Shinka, and Sport trims.

Designed specifically for the demands of forced induction, track, and rally racing, the Competition Clutch Ultra Lightweight Steel Flywheel (STU series) significantly reduces rotational mass. This 9.68lb flywheel is machined from 4140 forged steel to facilitate quicker revving and improved throttle response, making it an ideal pairing for Stage 3 and above clutch applications.

• Manufactured from high-strength 4140 forged steel
• One-piece design for maximum durability and safety
• Weight: 9.68 lbs for rapid engine acceleration
• Recommended for high-performance track and forced induction setups
• Manufacturer Part Number: 2-745-STU

Fits 1989-1995 Mazda RX-7 and 2004-2011 Mazda RX-8 models including Turbo, R3, and Grand Touring trims.

The Competition Clutch Lightweight Steel Flywheel (ST series) is engineered for naturally aspirated and street-driven rotary applications where maintaining low-end torque and daily drivability is a priority. This flywheel provides a significant improvement in throttle response and engine acceleration compared to the heavy factory unit while offering the durability required for performance use. Manufactured as a one-piece design from 4140 forged steel, it is highly recommended for use with Stage 1 and Stage 2 clutch kits.

• Manufacturer Part Number: 2-745-ST
• Material: 4140 Forged Steel
• Construction: One-piece design
• Weight: 13.2 lbs
• Preserves low-end torque and drivability
• Ideal for naturally aspirated and street-performance applications

The Competition Clutch ST Series Lightweight Steel Flywheel (MPN 2-738-ST) is engineered for street-driven and naturally aspirated applications. Specifically designed for 1993-2004 Subaru Forester, Impreza, Legacy, and Outback models, this 14lb flywheel provides a significant reduction in rotational mass compared to factory units without sacrificing the low-end torque or drivability required for daily use.

Manufactured from high-strength 4140 forged steel, this flywheel features a durable one-piece design that handles the increased thermal loads of performance driving. It is an ideal upgrade for vehicles equipped with Stage 1 or Stage 2 clutch kits, offering improved throttle response and smoother shifting transitions.

• Fits select 1993-2004 Subaru Forester, Impreza, Legacy, and Outback models.
• Weight: 14 lbs for balanced street performance.
• Material: 4140 Forged Steel construction.
• One-piece design for maximum durability and safety.
• Optimized for naturally aspirated and street-driven setups.
• Compatible with Stage 1 and Stage 2 clutch applications.
• Manufacturer Part Number: 2-738-ST

Fits select 1993-1999 Mitsubishi Eclipse, Galant, and Eagle Talon TSi models. This Competition Clutch lightweight steel flywheel is engineered for street-driven or naturally aspirated applications where maintaining low-end torque and smooth drivability is essential.

Manufactured as a one-piece component from 4140 forged steel, this 11.85lb flywheel offers significantly better throttle response and engine acceleration compared to heavy factory units without the extreme chatter or RPM drop-off often associated with ultra-lightweight aluminum versions. It is an ideal upgrade for vehicles equipped with Stage 1 or Stage 2 clutch kits, providing the durability needed for performance use while remaining refined enough for daily driving.

• Manufacturer Part Number: 2-735-4ST
• Material: 4140 Forged Steel
• Weight: 11.85 lbs
• Design: One-piece construction for maximum reliability
• Compatibility: Optimized for Stage 1 and Stage 2 clutch applications

Vehicle Fitment:

• 1993-1998 Eagle Talon TSi
• 1993-1994 Mitsubishi Eclipse GS
• 1993-1999 Mitsubishi Eclipse GST
• 1993-1999 Mitsubishi Eclipse GSX
• 1996-1999 Mitsubishi Eclipse Spyder GST
• 1994 Mitsubishi Galant (ES, GS, LS, S)

Fits select 1992-1999 Dodge Avenger, Eagle Talon TSi, Mitsubishi Eclipse GSX, and Plymouth Laser RS AWD Turbo models.

The Competition Clutch ST Series Lightweight Steel Flywheel is engineered for street-driven and naturally aspirated applications where maintaining driveability is a priority. Weighing 11.85 lbs, this flywheel offers a significant reduction in rotational mass over the stock unit to improve engine response and acceleration without the extreme chatter or loss of low-end torque often associated with ultra-light flywheels. This makes it an ideal choice for vehicles equipped with Stage 1 or Stage 2 clutch kits.

Constructed from a single piece of 4140 forged steel, this flywheel provides superior durability and heat dissipation compared to cast or multi-piece designs. It is a direct-fit replacement that maintains the necessary inertia for smooth engagement during daily driving.

• Manufacturer Part Number: 2-735-3ST
• Material: 4140 Forged Steel
• Design: One-piece construction
• Weight: 11.85 lbs
• Compatibility: Optimized for Stage 1 and Stage 2 clutch applications

Fits 1990-1996 Nissan 300ZX Turbo.

The Competition Clutch STU Ultra Lightweight Steel Flywheel is engineered to reduce rotational mass, providing significantly quicker revving capabilities for high-performance builds. Machined from a single piece of 4140 forged steel, this 12.78lb flywheel is built to withstand the rigors of forced induction, track, and rally racing. It is specifically recommended for Stage 3 and higher clutch applications where durability and engine response are critical.

• Manufacturer Part Number: 2-729-STU
• Weight: 12.78 lbs
• Material: 4140 Forged Steel
• Design: One-piece construction
• Application: Ideal for track, rally, and forced induction setups
• Clutch Compatibility: Optimized for Stage 3 and up

Fits select 1988-2010 Toyota Camry, Celica, MR2, and Scion tC. The Competition Clutch 2-725-ST Lightweight Steel Flywheel is specifically engineered for street-driven and naturally aspirated applications. This flywheel significantly reduces rotating mass for improved throttle response and faster revving while maintaining the low-end torque and smooth drivability required for daily use.

Every ST series flywheel is manufactured from high-strength 4140 forged steel in a one-piece design, ensuring durability and eliminating the risk of ring gear separation common with multi-piece units. It is an ideal pairing for Stage 1 and Stage 2 clutch kits, providing a reliable performance upgrade without the aggressive characteristics of ultra-lightweight racing flywheels.

• Manufacturer Part Number: 2-725-ST
• Weight: 11.94 lbs
• Material: One-piece 4140 Forged Steel
• Series: Competition Clutch ST (Lightweight Steel)
• Compatibility: Optimized for Stage 1 and Stage 2 clutch applications

Fits select 2005-2014 Subaru Forester XT, Impreza WRX, and Legacy GT models. This Competition Clutch ST (Lightweight Steel) flywheel is engineered for street-driven performance and naturally aspirated applications where maintaining low-end torque and OE-like drivability is critical.

Manufactured from 4140 forged steel, this flywheel features a robust one-piece design that eliminates the risk of ring gear separation and provides superior thermal capacity compared to aluminum alternatives. It is specifically recommended for use with Stage 1 and Stage 2 clutch kits to improve engine response and acceleration without the harshness of an ultra-lightweight racing flywheel.

• Manufacturer Part Number: 2-723-ST
• Material: 4140 Forged Steel
• Design: One-piece construction for maximum durability
• Application: Optimized for street and Stage 1/2 clutch setups
• Benefit: Increases throttle response while preserving low-end torque