Fits 2015-2018 Subaru WRX Base, Limited, and Premium models (2.0L).

The Action Clutch Stage 2 Super Copper (1SC) kit is engineered for drivers who need a significant upgrade in holding capacity without sacrificing the smooth engagement of a daily-driven street car. This kit features an organic friction material with the highest copper content available on the market, providing superior heat tolerance and a more consistent bite than standard OE components during circuit, time attack, or spirited street driving.

Built for reliability under load, the 1SC kit includes a reinforced steel-backed disc paired with a heavy-duty single diaphragm pressure plate. A standout safety feature is the patented fully enclosed spring retainer system, which prevents spring pop-out—a common failure point in performance clutches that can lead to catastrophic transmission or engine damage. Each kit is hand-assembled and rigorously inspected to ensure it meets strict engineering tolerances.

• Product Series: Stage 2 Super Copper
• Material: High-copper organic friction facing with reinforced steel backing
• Pressure Plate: Heavy-duty single diaphragm
• Spring System: Patented fully enclosed spring retainers
• Application: Street and occasional track use (Circuit / Time Attack)
• Manufacturer Part Number: 1SC

Fits 2004-2021 Subaru WRX STI and Impreza WRX STI models (2.5L Turbo AWD).

The Action Clutch Stage 2 Super Copper Kit (1SC) is engineered for drivers who need a higher heat threshold than a standard organic clutch can provide without sacrificing smooth street engagement. This kit is built for tuned street cars and basic bolt-on builds that see occasional track use in circuit, time attack, or road racing environments. By utilizing an organic friction material with the highest copper content available, this kit delivers superior grip and thermal stability over OEM components.

Each kit features a reinforced steel-backed disc for increased burst strength and is paired with a heavy-duty single diaphragm pressure plate to handle increased torque loads. To ensure long-term reliability, Action Clutch utilizes a patented fully enclosed spring retainer system. This design prevents the common failure of springs popping out, which can lead to catastrophic transmission or engine damage. Every kit is hand-assembled and undergoes multiple quality checks to verify performance tolerances.

• High-copper organic friction facing for superior heat tolerance and friction coefficient
• Reinforced steel-backed sprung disc increases durability for high-RPM shifts
• Patented fully enclosed spring retainer system prevents spring ejection failures
• Heavy-duty single diaphragm pressure plate provides increased clamping force
• Ideal for street-driven vehicles with basic bolt-on modifications
• Manufacturer Part Number: 1SC

Fits 2013-2020 Subaru BRZ models including Limited, Premium, and special editions (2.0L).

The Action Clutch Stage 2 Super Copper Kit (1SC) is engineered for drivers who bridge the gap between daily street use and occasional track duty, such as circuit racing or time attack. This kit utilizes a friction material with the highest copper content available in an organic clutch, providing superior heat tolerance and more consistent engagement than standard OE-style replacements. The copper-loaded organic facing is backed by a reinforced steel plate, allowing the assembly to hold increased torque from bolt-on modifications while maintaining smooth drivability.

Each kit features a heavy-duty single diaphragm pressure plate and a sprung disc equipped with Action Clutch's patented fully enclosed spring retainer system. This design prevents spring ejection and potential transmission damage, a common failure point in performance applications. Hand-assembled and quality-checked by experienced engineers, the 1SC kit offers the reliability needed for tuned street builds.

• Series: Stage 2 Super Copper (1SC)
• Friction Material: High-copper content organic with steel backing
• Disc Style: Sprung hub with patented enclosed spring retainers
• Pressure Plate: Heavy-duty single diaphragm
• Application: Street and light track (Circuit / Time Attack / Road Racing)
• Fitment: Replaces factory clutch on 2.0L FA20/4U-GSE engines

Fits 2007-2008 Nissan 350Z (3.5L).

The Action Clutch Stage 2 Super Copper (1SC) kit is engineered for drivers who demand more thermal capacity than a standard organic clutch without sacrificing the smooth engagement required for daily driving. This kit features an organic friction material with the highest copper content available, providing significantly better heat tolerance and more consistent bite during occasional track use, circuit racing, or time attack sessions.

Built for stock to moderately tuned street cars with basic bolt-on modifications, the 1SC kit utilizes a reinforced steel-backed disc to handle increased torque loads. Each kit includes a heavy-duty single diaphragm pressure plate and features Action Clutch's patented fully enclosed spring retainer system to prevent spring pop-out—a common failure point in inferior sprung hub designs.

• High-copper organic friction material for superior heat dissipation and grip
• Reinforced steel-backed disc for increased durability and high-RPM stability
• Heavy-duty single diaphragm pressure plate for predictable, smooth pedal feel
• Patented fully enclosed spring retainer system protects against transmission damage
• Hand-assembled and quality-verified by senior engineers
• Manufacturer Part Number: 1SC (Does not include HD Slave Cylinder)

Fits 1992-2001 Honda Prelude (2.2L / 2.3L).

The Action Clutch Stage 2 (1SC) Super Copper Kit bridges the gap between daily street drivability and the thermal demands of the track. Engineered for tuned street cars and basic bolt-on builds, this kit features an organic disc with the highest copper content available. This material composition provides significantly better heat tolerance and more consistent friction than standard OEM organic facings while maintaining smooth, chatter-free engagement for your daily commute.

The kit utilizes a heavy-duty single diaphragm pressure plate to increase clamping force, ensuring the power reaches the ground during circuit racing, time attack, or road racing sessions. To protect your drivetrain, the sprung disc features a patented fully enclosed spring retainer system, preventing the common failure of springs popping out and damaging the transmission or engine. Each kit is hand-assembled and undergoes multiple quality checks by senior engineers to ensure competition-grade reliability.

• Series: Stage 2 (1SC) Super Copper
• Disc Material: High-copper content organic with reinforced steel backing
• Hub Style: Sprung with patented enclosed retainer system
• Pressure Plate: Heavy-duty single diaphragm
• Application: Street and occasional track use (Circuit, Time Attack, Road Racing)
• Compatibility: Fits H22 and H23 engine platforms (2.2L and 2.3L)

Fits 2012-2015 Honda Civic Si (2.4L).

The Action Clutch Stage 2 Super Copper Kit (1SC) is engineered for drivers who require increased torque capacity for occasional track use without sacrificing the smooth engagement needed for a daily-driven street car. Featuring the highest copper content available in an organic clutch facing, this kit provides superior heat tolerance and more consistent friction levels than standard OEM-style replacements. It is the ideal setup for K24Z7 engines with basic bolt-ons or tuning used for circuit racing, time attack, or spirited driving.

Construction features a reinforced steel-backed, copper-loaded organic disc paired with a heavy-duty single diaphragm pressure plate. To prevent common drivetrain failures, this kit utilizes a patented fully enclosed spring retainer system. This proprietary design protects the assembly from spring ejection—a failure mode that can cause severe damage to the transmission or engine—ensuring reliable performance during high-RPM shifts.

• Manufacturer Part Number: 1SC
• Series: Stage 2 Super Copper
• Disc Construction: Sprung hub with reinforced steel backing
• Friction Material: High copper-content organic facing
• Spring Retainer: Patented fully enclosed system
• Flywheel Compatibility: Designed for use with the OEM flywheel
• Recommended Use: Street, Circuit, Time Attack, Road Racing

Fits 2012-2015 Honda Civic Si (2.4L).

The Action Clutch Stage 2 (1SC) Super Copper Kit is engineered for drivers who require a balance between daily street drivability and occasional track performance, such as circuit, time attack, and road racing. This kit features an organic disc with the highest copper content available, providing significantly better heat tolerance and grip than a factory clutch without sacrificing smooth engagement.

Built to handle increased torque from basic bolt-on modifications and tuning, the assembly utilizes a heavy-duty single diaphragm pressure plate paired with a reinforced steel-backed disc. For long-term reliability, the sprung disc includes a patented fully enclosed spring retainer system, designed to prevent spring pop-outs that can lead to catastrophic transmission or engine damage. Each kit includes a lightened flywheel to reduce rotational mass and improve engine response.

• Fits 2012-2015 Honda Civic Si (2.4L / K24Z7)
• Series: Stage 2 (1SC) Super Copper
• Copper-loaded organic friction material for superior heat resistance
• Reinforced steel-backed disc for increased durability
• Heavy-duty single diaphragm pressure plate
• Patented fully enclosed spring retainer system
• Includes lightened flywheel for improved throttle response
• Hand-assembled and quality-checked by senior engineering team

Fits 2006-2011 Honda Civic Si (2.0L / K20Z3).

The Action Clutch Stage 2 Super Copper (1SC) kit is engineered for drivers who bridge the gap between daily street use and occasional track sessions. Utilizing the highest copper content available in an organic friction material, this kit provides significantly better heat tolerance and more consistent bite than a standard OEM replacement. The copper-loaded organic facing is paired with a reinforced steel-backed disc to maintain integrity under high-RPM shifts without sacrificing the smooth engagement required for comfortable street driving.

Reliability is prioritized with a patented fully enclosed spring retainer system. This proprietary design secures the damper springs to prevent them from popping out—a common failure point in performance clutches that can lead to catastrophic transmission or engine damage. Each kit is hand-assembled and quality-checked to ensure it meets the demands of stock, tuned, or basic bolt-on K20Z3 builds.

• Product Series: Stage 2 (1SC) Super Copper
• Disc Material: High copper-content organic with steel backing
• Pressure Plate: Heavy-duty single diaphragm
• Application: Street, Circuit, Time Attack, Road Racing
• Patented fully enclosed spring retainer system for maximum durability
• Fits factory flywheel mounting points

Fits 1999-2000 Honda Civic Si (1.6L).

The Action Clutch Stage 2 (1SC) Super Copper Clutch Kit is engineered for high-performance street applications and occasional track use, including circuit racing, time attack, and road racing. This kit provides a significant upgrade over the OEM unit by utilizing the highest copper content available in an organic clutch facing, resulting in superior heat tolerance and more consistent friction performance without sacrificing smooth engagement.

The 1SC kit features a reinforced steel-backed, copper-loaded organic sprung disc paired with a heavy-duty single diaphragm pressure plate. To ensure long-term reliability under stress, Action Clutch utilizes a patented fully enclosed spring retainer system. This design prevents the common failure of springs popping out, which can lead to catastrophic transmission or engine damage. Each kit is hand-assembled and undergoes rigorous quality checks by a senior engineering team to ensure precise fitment and performance.

• Series: Stage 2 (1SC) Super Copper
• Application: Street / Occasional Track
• Disc Type: Sprung, Steel-Backed Organic
• Friction Material: High Copper Content Organic
• Pressure Plate: Heavy-Duty Single Diaphragm
• Patented fully enclosed spring retainer system
• Hand-assembled and engineered for the B16A2 engine

Fits select 1992-2000 Honda Civic (1.5L / 1.6L).

The Action Clutch Stage 2 Super Copper Kit (1SC) is engineered for drivers who demand consistent performance across both street and track environments. This kit features an organic disc with the highest copper content available on the market, providing significantly better heat tolerance and grip than a standard OEM replacement while maintaining the smooth engagement required for daily driving.

Constructed with a reinforced steel-backed plate and copper-loaded organic facing, this Stage 2 kit is the ideal setup for stock engines, tuned street cars, and builds with basic bolt-on modifications. Like all Action Clutch sprung kits, the Super Copper features a patented fully enclosed spring retainer system to prevent spring failure and protect your engine and transmission from damage.

• Manufacturer Part Number: 1SC
• Series: Stage 2 Super Copper Kit
• Disc Type: Reinforced steel-backed, copper-loaded organic facing
• Pressure Plate: Heavy-duty single diaphragm
• Application: Street, Circuit, Time Attack, and Road Racing
• Patented fully enclosed spring retainer system
• Hand-assembled and quality-verified by senior engineers

Fits 2004-2008 Acura TSX Base (2.4L / K24A2).

The Action Clutch Stage 2 Super Copper Kit (1SC) is engineered for drivers who demand increased heat tolerance and higher torque capacity without sacrificing the smooth engagement required for daily street use. This kit features a disc with the highest copper content available in an organic facing, providing a significant upgrade over OEM grip and thermal stability for occasional circuit, road racing, or time attack use.

Included in this package is a lightened flywheel designed to reduce rotational inertia, resulting in faster throttle response and quicker revving through the gears. The sprung disc utilizes a patented fully enclosed spring retainer system to prevent spring pop-outs and catastrophic transmission damage, while the heavy-duty single diaphragm pressure plate ensures consistent pedal feel and superior clamping force over the factory unit.

• Stage 2 (1SC) Super Copper Series optimized for street and track applications
• High-copper content organic facing for superior heat management and grip
• Reinforced steel-backed disc construction for high-load durability
• Patented fully enclosed spring retainer system for increased safety and reliability
• Includes lightened flywheel, heavy-duty pressure plate, and sprung disc
• Hand-assembled and quality-checked by experienced engineering specialists

Fits 2002-2006 Acura RSX Type-S (2.0L).

The Action Clutch Stage 2 Super Copper (1SC) kit is engineered for drivers who need a significant upgrade over the factory unit without sacrificing the smooth engagement required for daily driving. Specifically developed for street and occasional track applications—including circuit, time attack, and road racing—this kit utilizes a high-copper organic friction material. This composition provides superior heat tolerance and a more aggressive grip than standard organic linings, ensuring consistent performance during spirited driving.

Construction features a reinforced steel-backed disc paired with a heavy-duty single diaphragm pressure plate. To address common failure points in performance clutches, the 1SC kit includes a patented fully enclosed spring retainer system. This design prevents spring pop-outs that can lead to catastrophic transmission or engine damage. Each kit is hand-assembled and rigorously checked to meet strict tolerances, providing a reliable solution for stock engines, tuned street cars, and bolt-on builds.

• Application: Street and occasional track use (Circuit, Time Attack, Road Racing)
• Disc Material: High-copper organic with reinforced steel backing
• Hub Style: Sprung hub with patented enclosed spring retainer system
• Pressure Plate: Heavy-duty single diaphragm design
• Engagement: Smooth, OEM-like pedal feel with increased torque capacity
• Manufacturer Part Number: 1SC

Fits select 2017-2023 Honda Civic, Accord, and Acura Integra (1.5L).

Action Clutch Chromoly Lightweight Flywheels are engineered to reduce rotational mass, delivering significantly faster engine response and quicker revving for both high-performance street and dedicated race applications. Each flywheel undergoes a specialized heat treatment process to ensure maximum durability and high thermal capacity under extreme driving conditions.

Designed for longevity and performance, these flywheels are fully resurfaceable, extending their service life through multiple clutch changes. While the reduction in weight improves drivetrain efficiency, please note that some increase in noise, vibration, and harshness (NVH) is common when switching to a lightweight single-mass flywheel.

• Forged from high-strength chromoly steel for superior structural integrity
• Precision balanced and tested to sustain up to 18,000 RPM
• Heat-treated for increased surface hardness and wear resistance
• Resurfaceable design for long-term serviceability
• Direct replacement for the factory flywheel

Fits select 1989-2005 Toyota Supra, Lexus IS300, and Lexus SC300 (3.0L).

XClutch chromoly flywheels are engineered to provide a significant reduction in rotating mass without sacrificing structural integrity. CNC-machined from high-strength 4140 chromoly, these flywheels improve engine response and acceleration, making them an essential upgrade for performance-oriented street builds. Designed specifically for single-disc applications, this flywheel provides a reliable friction surface that stands up to the heat and stress of spirited driving.

• Manufactured from high-tensile 4140 chromoly for maximum strength and durability
• Reduced weight for faster revving and improved throttle response
• Engineered for single-disc clutch applications
• Recommended for street use
• Features an integral ring gear for precise fitment and reliability
• Designed and tested for 3.0L Toyota and Lexus drivetrains

Fits select 2005-2020 Subaru BRZ, WRX, Forester, Legacy, Outback, Scion FR-S, and Toyota 86 (2.0L).

The XClutch chromoly flywheel is engineered to reduce rotational mass without sacrificing the structural integrity required for performance driving. Machined from high-strength 4140 chromoly steel, this flywheel provides significantly improved throttle response and faster revving compared to heavy factory cast units. Designed specifically for street use and single-disc clutch applications, it offers the ideal balance of durability and weight reduction.

Each flywheel is precision-balanced and includes an integral ring gear for seamless starter engagement. By replacing the stock flywheel with this chromoly upgrade, you improve the vehicle's power delivery and engine responsiveness during spirited driving and daily commutes alike.

• Material: 4140 Chromoly Steel
• Application: Suit Single Disc Applications
• Recommended Use: Street Use
• Features: Integrated Ring Gear and Timing Sensor Ring (where applicable)
• Design: Engineered for strength and weight reduction

Fits 2022+ Honda Civic and 2023+ Acura Integra models equipped with manual transmissions.

The Torque Solution HD Shifter Centering Spring is a direct replacement for the soft factory spring, engineered to provide a significantly firmer and more tactile shifting experience. By increasing the tension on the horizontal gate movement, this heavy-duty spring ensures the gear lever snaps back to the center (neutral) position with increased force, eliminating the vague or "mushy" sensation often found in the OEM setup.

This upgrade is essential for drivers looking to improve shift precision during spirited driving or track use. The increased centering tension helps clearly define the gates, reducing the likelihood of missed shifts and providing a more mechanical, connected feel to the transmission.

• Manufactured from high-tensile spring steel
• Significantly increases centering force over the factory spring
• Provides crisper, more defined gear selection
• Direct-fit replacement for the OEM shifter assembly spring
• Enhances tactile feedback for manual transmission drivers

Reinforce your front axle housing with Synergy Dana 44 Front Inner C Gussets, engineered for 2018-2024 Jeep Wrangler JL, JLU, and Gladiator JT models. These heavy-duty reinforcements provide the structural support needed to prevent the factory "C" knuckles from bending or deflecting under the stress of larger off-road tires and aggressive trail use.

Designed to wrap around the factory axle C's, these weld-on gussets strengthen the weakest point of the front axle assembly without interfering with ball joint service or steering travel. They are a critical upgrade for any Jeep owner running 35-inch or larger tires who wants to maintain proper alignment and axle integrity.

• Fits 2018-2024 Jeep Wrangler JL/JLU and Gladiator JT with Dana 44 front axles.
• Laser-cut and CNC-bent from high-strength steel for precise fitment.
• Prevents axle housing damage and maintains correct camber geometry.
• Weld-on design provides maximum rigidity for extreme off-road conditions.
• Designed to clear factory and aftermarket suspension components.

Fits 2018-2024 Jeep Wrangler JL, JLU, and Gladiator JT models equipped with a Dana 44 front axle.

The Synergy Front Axle Truss provides essential structural reinforcement for the Dana 44 housing, which is prone to bending or "smiling" when subjected to the stress of larger tires and aggressive off-road use. This weld-on truss spans the length of the axle to bridge the center section and tubes, significantly increasing the beam strength of the assembly to prevent housing deflection and permanent damage.

• Engineered specifically for the Jeep JL and JT Dana 44 front axle geometry
• Reinforces factory axle tubes to prevent bending under heavy loads
• Low-profile design maintains clearance for suspension components
• Precision-cut components ensure a tight fit to the axle housing for stronger weld joints
• Must be welded to the factory axle housing

Fits 2014-2024 RAM 2500 and 3500 4WD models.

This Synergy Manufacturing Front Drive Shaft Spacer is engineered to correct drivetrain geometry on lifted RAM trucks. Increasing ride height extends the distance between the front differential and the transfer case, which can lead to insufficient spline engagement. This 1.25-inch precision-machined spacer restores that critical engagement, preventing the driveshaft from over-extending or pulling out of the slip yoke during full suspension droop.

Built to handle the torque of heavy-duty diesel and gas applications, this spacer installs directly between the front driveshaft flange and the pinion flange. By maintaining proper driveshaft length, you reduce the risk of premature wear on the slip-joint and ensure reliable power delivery during off-road articulation.

• Corrects front driveshaft length on lifted suspension systems
• Restores critical spline engagement to prevent drivetrain damage
• Thickness: 1.25 inches
• Precision machined for vibration-free operation
• Includes high-strength mounting hardware for a complete installation

Fits select 2001-2019 Chevy Silverado and GMC Sierra 2500HD/3500HD trucks with the 6.6L Duramax engine.

Protect your Allison transmission and extend fluid life with the Banks Power Ram-Air transmission pan. Unlike standard deep pans that rely solely on increased fluid capacity, the Ram-Air design uses patented directional cooling fins and an integrated air scoop to channel high-velocity airflow across the pan surface. This forced-air cooling significantly reduces fluid temperatures during heavy towing and high-load conditions where heat soak usually degrades transmission performance.

• Patented Ram-Air cooling scoops and directional fins for superior heat dissipation
• Durable cast aluminum construction with internal heat sinks
• Includes a magnetic drain plug to capture metal debris and simplify maintenance
• Direct bolt-on replacement for the factory pan
• Maintains ground clearance while providing enhanced cooling efficiency

Fits 2017-2019 Chevrolet Silverado and GMC Sierra 2500/3500 HD trucks with the 6.6L Duramax L5P engine.

The Banks Power CoolRunner Oil Pan is a heavy-duty upgrade designed to optimize oil management and thermal stability in the L5P Duramax platform. Maintaining consistent lubrication and cooling is critical for engine longevity, especially during high-load towing or performance driving. This oil pan replaces the factory unit with a design focused on durability and effective heat dissipation.

• Direct replacement for the factory 2017-2019 Duramax L5P oil pan
• Engineered as part of the CoolRunner series for enhanced thermal performance
• Rugged construction handles the stress of heavy-duty towing and high-heat environments
• Designed to mount directly to factory points for a secure, leak-free seal

Fits 2019-2025 Mazda MX-5 Miata and Miata RF models across all trims including Sport, Club, and Grand Touring.

The ACT ZM15-HDSD clutch kit is engineered for drivers seeking increased clamping force and improved shifting response without sacrificing street driveability. This kit centers on the ACT Heavy Duty pressure plate, which utilizes a specialized diaphragm design to maximize clamp load while reducing deflection. Every diaphragm undergoes a rigorous four-stage heat-treating process to ensure consistent performance under high-stress conditions.

The included performance street rigid-hub disc is constructed with premium organic friction materials featuring a high copper content for superior heat dissipation. To ensure durability during high-RPM use, the lining is steel-backed for increased burst strength. The rigid chrome-moly hub is heat-treated for maximum strength, and the disc is designed with minimum weight to reduce inertia for faster, more precise gear changes.

• Manufacturer Part Number: ZM15-HDSD
• Kit Series: Heavy Duty / Performance Street Rigid
• Pressure Plate: Precision-stamped cover for maximum rigidity
• Disc Construction: Steel-backed organic with high copper content
• Hub Material: Heat-treated chrome-moly steel
• Included Components: Pressure plate, rigid street disc, release bearing, pilot bearing, and alignment tool
• Warranty: Manufacturer one-year limited warranty

Fits 2019-2025 Mazda MX-5 Miata (Sport, Club, Grand Touring, RF, and Special Editions).

The ACT ZM14-HDG6 Heavy Duty Race clutch kit is engineered for high-performance applications where rapid shifting and increased torque capacity are required. This kit combines ACT’s Heavy Duty pressure plate with a 6-pad, spring-centered race disc and a matched flywheel to deliver a complete driveline upgrade that handles significantly more stress than the factory components.

The Heavy Duty pressure plate utilizes an exclusive diaphragm design that undergoes a rigorous four-stage heat-treating process to maximize clamping load and service life while reducing deflection. Precision-stamped covers provide the rigidity needed for consistent pedal feel and repeatable engagement. The included 6-pad race disc features a spring-centered hub to damp torsional vibrations, protecting your transmission under harsh conditions. While the ceramic friction material provides harsher engagement than a standard street disc, it offers superior heat capacity and resists fade during repeated high-stress racing cycles.

• Part Number: ZM14-HDG6
• Heavy Duty pressure plate with exclusive four-stage heat-treated diaphragm
• 6-pad ceramic race disc for high heat capacity and faster shifting
• Spring-centered hub reduces torsional stress on the transmission
• Wraparound spring windows and thick retainer stampings for increased reliability
• Precision-stamped cover provides rigidity and consistency
• Includes pressure plate, race disc, and flywheel
• Backed by a manufacturer one-year warranty

Fits 1999-2002 Nissan Skyline GT-R (R34).

The ACT T2SS-N04 Mod-Twin 225 XT Sprung Street Kit is engineered for high-horsepower AWD applications where drivetrain durability and streetable engagement are equally critical. This modular twin-disc system doubles the organic friction surface area to significantly increase torque capacity without the harsh, aggressive chatter typical of race-only clutches. The system utilizes a proprietary Mono-Drive sprung hub to reduce driveline shock and torsional vibration, protecting your input shaft during high-load gear changes.

• Modular Design: Fully rebuildable construction with components available separately for long-term serviceability.
• Mono-Drive Hub: Provides the dampening of a sprung hub with the strength of a solid assembly, extending transmission life.
• Precision Manufacturing: Includes a CNC-machined and dynamically balanced flywheel for smooth, high-RPM operation.
• Heat Treatment: Diaphragm springs undergo a four-stage heat-treating process for consistent pedal feel and clamp load.
• Included Hardware: Kit includes pressure plate, twin organic friction plates, Mono-Drive hub, floater, patented Monoloc Collar, release bearing, alignment tool, and pilot bearing.

By utilizing steel-backed organic friction materials, this kit maintains a stable friction coefficient and excellent heat capacity for repetitive street and occasional track use. It is backed by a manufacturer one-year warranty. Manufacturer Part Number: T2SS-N04.

Fits 1999-2002 Nissan Skyline GT-R (R34).

The ACT T1SS-N04 Mod-Twin 225 HD Sprung Street Kit is engineered specifically for high-horsepower, all-wheel-drive street applications. This modular twin-disc system achieves high torque capacity by doubling the available organic friction surfaces while maintaining the pedal feel and engagement quality necessary for street driving. The heart of the system is the ultra-durable Mono-Drive sprung hub, which reduces driveline shock and protects the gearbox input shaft from torsional vibrations.

• Exclusive four-stage heat-treated diaphragm spring provides a consistent, light pedal feel throughout the clutch life.
• Steel-backed organic friction plates offer a stable friction coefficient and high heat capacity for reliable performance.
• CNC-machined and dynamically balanced flywheel ensures smooth, vibration-free operation.
• Modular design allows the kit to be fully rebuildable with individual components available separately.
• Includes patented Monoloc Collar to prevent the release bearing from separating under high-load conditions.

Kit Includes: Dynamically balanced flywheel, pressure plate cover, diaphragm spring, organic friction plates, sprung Mono-Drive hub assembly, floater, Monoloc collar, release bearing, alignment tool, and pilot bearing.

Fits 1990-2001 Nissan Skyline models equipped with the RB20 engine.

The SPEC Billet Steel Flywheel is engineered as a high-performance replacement for the heavy factory cast iron unit. Manufactured from high-carbon billet steel, this flywheel provides a significant improvement in engine acceleration and throttle response while maintaining sufficient mass to ensure smooth drivability in both street and track environments.

Unlike standard cast flywheels, SPEC billet units are precision CNC-machined to exacting tolerances, ensuring a perfectly flat friction surface and consistent rotational balance. This construction offers superior heat dissipation and structural integrity, making it a critical upgrade for high-RPM use and forced induction setups where factory components may fail.

• Precision CNC-machined from high-carbon billet steel for maximum durability
• Reduces rotational inertia for faster revving and improved throttle response
• Engineered to resist warping and heat-induced surface cracking
• Compatible with SPEC clutch kits and OEM-style clutch assemblies
• SFI certified for safety in high-performance and racing applications

Fits 1999-2003 Ford F-250 and F-350 Super Duty models (7.3L).

Factory clutch forks in the 7.3L Power Stroke trucks are known to flex or eventually wear through at the pivot point, especially when paired with high-clamp performance pressure plates. This South Bend Clutch Heavy Duty (HD) Fork and Pivot Ball kit provides a reinforced solution to restore proper clutch geometry and engagement. Whether you are performing a routine clutch job or upgrading for high-torque towing, replacing these high-wear items ensures consistent pedal feel and reliable release.

• Heavy-duty reinforced steel construction to resist bending
• Direct replacement for OE clutch fork and pivot ball components
• Critical for trucks running upgraded or high-pressure clutch kits
• Helps eliminate clutch release issues caused by worn pivot points
• Designed specifically for the ZF 6-speed manual transmission found in 7.3L Ford trucks

Fits 2005-2018 Dodge and Ram 2500/3500 models equipped with the G56 6-speed manual transmission and the 5.9L or 6.7L Cummins diesel engine.

Engineered for high-torque street applications, the South Bend Clutch Super Street Dual Disc Clutch Kit provides the holding power necessary for modified Cummins engines without sacrificing drivability. This setup utilizes two clutch discs to significantly increase the friction surface area, allowing for higher torque capacity and improved heat dissipation compared to a single-disc unit. The included flywheel replaces the factory component to ensure a perfectly matched friction surface and long-term durability under heavy loads.

• Product Series: Super Street Dual Disc
• Transmission Compatibility: G56 6-Speed Manual
• Engine Compatibility: 5.9L and 6.7L Cummins Diesel
• Included Components: Dual disc clutch assembly, pressure plate, and flywheel
• Application: Heavy-duty street use and towing

Fits select 1994-2004 Dodge Ram 2500 and 3500 models equipped with the NV4500 manual transmission.

The South Bend Clutch Super Street Dual Disc Clutch Kit is engineered to handle the massive torque loads of modified heavy-duty trucks. By utilizing a dual-disc configuration, this kit significantly increases the friction surface area and clamping capacity compared to a single-disc setup, ensuring reliable power transfer for heavy towing and high-performance street use. This kit is designed specifically for NV4500-equipped Rams and provides a balance of holding power and manageable pedal effort.

• Product Line: Super Street Dual Disc
• Transmission Compatibility: NV4500 5-Speed
• Fitment Requirement: Only fits models with an upgraded input shaft
• Application: 1994-2004 Dodge Ram 2500 and 3500
• Optimized for high-torque street and towing applications

Fits 2008-2010 Ford F-250 and F-350 Super Duty models equipped with the 6.4L Power Stroke diesel engine and ZF-6 manual transmission.

Engineered for heavy-duty trucks that require increased holding capacity without sacrificing street manners, the South Bend Clutch Street Dual Disc Organic Clutch Kit provides a substantial upgrade over the factory single-disc setup. By utilizing two organic friction discs, this kit significantly increases the total surface area available for torque transfer. This allows for higher power levels and improved towing performance while maintaining the smooth engagement and quiet operation required for daily driving.

• Dual-disc configuration provides superior torque management for modified 6.4L engines
• Organic friction material ensures smooth, chatter-free engagement and pedal feel
• Designed specifically for the Ford ZF-6 6-speed manual transmission
• High-strength pressure plate delivers reliable clamping force for heavy loads
• Replaces worn or slipping OE clutch components with a high-performance alternative