Fits 2019-2024 Ram 2500 and 3500 4WD models with the 68RFE transmission.

The BD Diesel TorqueMaster Performance Transmission is engineered to handle the increased horsepower and torque of modern diesel applications. This 4WD-specific unit features a billet input shaft designed to withstand the "snap" associated with rapid throttle transitions and high-output tuning that often shears factory components. To ensure long-term durability, BD utilizes QT100 pressure plates which allow for increased clutch counts while reducing deflection and distortion within the clutch drum.

Hydraulic integrity is reinforced via a custom bonded gasket valve body separator plate and a hard-anodized valve body, eliminating internal cross-leaks and maintaining line pressure. The included BD Deep Sump oil pan provides additional fluid capacity and cooling while increasing case rigidity to prevent flex under load.

• Billet input shaft handles high-torque shocks and rapid throttle input
• Overdrive and 2C clutch counts increased by 33%
• Durable QT100 pressure plates eliminate drum distortion
• Steel girdle added to 2C piston for a broader apply area
• Custom Big Stack overdrive shaft and reinforced accumulator plate
• New 4C billet spring retainer and new solenoid pack installed in every unit
• Heavy-duty cam and roller design low-reverse one-way clutch
• Hard-anodized valve body for wear resistance
• Manufacturer Part Number: 1064294B

Note: Special tuning is required for 2019-up applications to support increased line pressure. Line pressure controller is not included. Damage from race abuse is not covered.

Fits select 2004-2013 Volvo C30, S40, and S60 models equipped with the 2.5L engine. This XClutch performance upgrade is engineered for high-horsepower, street-driven vehicles that require a balance between massive torque capacity and daily driveability.

The 9-inch twin-disc design utilizes sprung organic friction discs to significantly reduce shock loading on the transmission compared to rigid alternatives, while the lightweight alloy hat improves engine response. Each kit undergoes rigorous analysis of the pivot point and diaphragm design to ensure a positive pedal feel and increased clamping force over the factory setup. This kit is ideal for owners looking to maintain smooth engagement without sacrificing the performance needed for aggressive street use.

• Manufacturer Part Number: XKFD23648-2A
• Type: Twin Disc, Sprung Organic
• Diameter: 9.0 inches (230mm)
• High-torque capacity with excellent street driveability
• Lightweight alloy hat construction
• Includes: Friction Discs, Pressure Plate, Hydraulic Release Bearing, Flywheel, Pilot Bearing, and Alignment Tool

Fits select 2018-2023 Jeep Wrangler and Gladiator models.

The McLeod Adventure Series Super Trail Pro Pack Clutch and Flywheel Kit (MPN 776005K) is engineered specifically for the rigors of serious off-roading and heavy-duty trail use. This kit is the ideal solution for Jeep owners running engine modifications such as stroker kits, turbochargers, or superchargers, and those coping with the increased drivetrain stress of heavy vehicle weights and 37-inch or larger tires.

Each kit features a high clamp load diaphragm-style pressure plate paired with a dual-performance clutch disc. By utilizing both organic and ceramic friction surfaces, the disc delivers the smooth engagement required for daily driving alongside the aggressive holding power needed for technical terrain. Included in the package is the McLeod Max Mass Flywheel, which is engineered to provide more dynamic energy to the engine, helping to prevent stalling during low-speed crawling and high-torque maneuvers.

• High Clamp Load: Diaphragm-style pressure plate designed for increased holding capacity under load.
• Dual-Material Disc: Combines organic and ceramic facets for a balance of drivability and heat resistance.
• Max Mass Flywheel: Engineering focus on dynamic energy to eliminate stalling in off-road environments.
• Performance Rating: Optimized for Jeeps with power-adders, heavy armor, and tires 37" and up.
• Comprehensive Kit: Includes pressure plate, dual-performance disc, Max Mass flywheel, throw-out bearing (where applicable), pilot bushing (where applicable), and alignment tool.
• Manufacturer Part Number: 776005K

Fits 2005-2019 Chevrolet Silverado 2500 HD/3500 HD and GMC Sierra 2500 HD/3500 HD 4WD models equipped with the 6-speed Allison transmission.

This Cognito Allison Transmission Bracket is an essential component when upgrading to a Cognito CV front driveline. Designed specifically for 4WD heavy-duty trucks, this bracket relocates the transmission shift linkage to provide critical additional clearance around the CV head. By moving the linkage, it prevents mechanical interference and ensures smooth operation of the drivetrain under various load conditions.

Built for durability in demanding environments, the bracket is finished in a semi-gloss black powder coat for superior corrosion resistance. This component is a required service part for Cognito CV driveline installations on 6-speed Allison-equipped vehicles.

• Manufacturer Part Number: 110-90278
• Compatibility: Required for use with Cognito CV front drivelines
• Finish: Semi-gloss black powder coat
• Transmission: Fits 6-speed Allison only
• Installation: Replaces/relocates factory shift linkage components
• Origin: Made in the USA

Fits select 2017-2021 Ford F-250 and F-350 Super Duty SRW models (King Ranch, Lariat, Limited, Platinum, XL, XLT) equipped with the Dana M275 rear axle.

Protect your drivetrain with the Banks Ram-Air differential cover (MPN: 19280). Unlike conventional flat-back aftermarket covers that can cause fluid aeration and stagnant air pockets, the patented Banks design utilizes high-velocity Ram-Air scoops to force air through specialized radiation fins. In on-road towing tests, this system cooled 5X better than high-capacity flat-back covers, significantly extending the lubrication life of your gear oil.

The internal geometry is precision-engineered to improve fluid dynamics. A dedicated ring gear raceway guides fluid directly to the ring and pinion interface and out to the axle tubes and bearings, ensuring critical components stay lubricated under heavy loads. The design retains factory ground clearance and fluid capacity while providing superior heat rejection.

• Patented Cooling: Forced-air scoops and FlowThru Fins® overcome the dead air zone behind the differential.
• Fluid Management: Reduces aeration and improves lubrication flow to bearings.
• Premium Features: Includes a high-visibility sight glass, magnetic drain plug, and a 1/8-inch NPT temp sensor port.
• Rugged Construction: Durable black finish with an O-ring seal to eliminate the need for messy RTV.
• Safety Engineered: Ram-Air scoops are designed to break away if they strike an obstacle, preventing housing damage.

Fits 2018-2021 Subaru WRX Base, Limited, and Premium models (2.0L).

The Action Clutch Stage 1 (1OS) Clutch Kit is engineered for vehicles ranging from stock to those with basic bolt-on modifications. This kit provides a 70% increase in holding capacity over the factory unit, making it an ideal solution for heavy-duty street use and mild track applications. By utilizing a reinforced steel-backed copper Kevlar organic friction material, the Stage 1 system achieves significantly higher torque capacity without sacrificing the smooth engagement or comfortable pedal feel found in the original equipment.

To ensure long-term durability and safety, this kit features a single diaphragm heavy-duty pressure plate and Action Clutch's patented, fully enclosed spring retainers. These retainers are specifically designed to prevent springs from popping out under stress, protecting your transmission and engine from internal damage during high-performance driving.

• Manufacturer Part Number: ACR-1816-FFW
• Series: Stage 1 (1OS)
• Friction Material: Steel-backed copper Kevlar organic
• Torque Capacity: 70% increase over factory kit
• Pressure Plate: Heavy-duty single diaphragm
• Spring Retainers: Patented fully enclosed design
• Recommended Use: Heavy-duty street and mild track-use

Fits select 2015-2026 Ford Mustang models, including EcoBoost, GT, Bullitt, Mach 1, Dark Horse, GTD, and Shelby GT350/GT500.

The Whiteline KDT966 differential mount bushing kit is designed to eliminate the drivetrain slop associated with soft factory rubber bushings. By securing the differential housing to the rear subframe with high-durometer synthetic elastomer, this kit ensures critical pinion angles are maintained under heavy acceleration. This stabilization reduces initial torque loss and minimizes wheel hop, resulting in more direct power transfer to the wheels and improved gear shift precision.

This kit is a comprehensive solution for both street and track-driven S550 and S650 platforms, replacing high-compliance OE components with durable, low-deflection bushings and shells. All necessary mounting hardware is included for a complete installation.

• Manufacturer Part Number: KDT966
• 4 Shell Bushings
• 4 Synthetic Elastomer Bushings
• 4 Inner Tubes
• 8 Washers
• 2 Grade-Specific Bolts
• 2 Nuts

Fits select 2008-2017 Subaru Impreza, WRX, STI, Forester, XV Crosstrek, and Crosstrek models.

The Whiteline KDT907 Rear Subframe Posi Traction Kit is designed to drastically reduce rear cross member misalignment and movement. By replacing or augmenting factory bushings, this kit stabilizes the rear subframe, ensuring a more positive feel and consistent suspension geometry during high-load cornering. It is highly recommended for motorsport use or for drivers seeking a more connected rear-end feel.

Constructed from Whiteline's advanced synthetic elastomer formulation, these components are engineered to resist oil, grease, ozone, and harsh weathering. All metal components feature protective plating and powder coating to withstand corrosion in the toughest environments. Internal grease reservoirs facilitate continual self-lubrication for long-term friction management and noise reduction.

• Eliminates rear subframe movement for improved handling precision
• Advanced synthetic elastomer formulation resists degradation
• Internal grease reservoirs for optimum friction management
• Includes extreme pressure molybdenum disulphide (LM) based grease
• Corrosion-resistant protective plating and powder coating
• Manufacturer Part Number: KDT907
• Includes detailed installation guide

Fits 1987-2001 Jeep Cherokee models (Base, Briarwood, Chief, Classic, Country, Laredo, Limited, Pioneer, SE, and Sport).

Tuff Country rear axle u-bolts are engineered specifically for vehicles equipped with suspension lift kits. These 2.75-inch wide u-bolts provide the critical clamping force required to secure the leaf spring pack to the rear axle housing, maintaining suspension alignment and stability. They serve as a direct replacement for worn or stretched factory hardware when installing a lift.

To ensure long-term durability in harsh environments, these u-bolts feature a zinc-plated finish for maximum corrosion resistance. This kit is a complete solution for one vehicle, providing all necessary hardware for a secure installation.

• Designed for 1987-2001 Jeep Cherokee (XJ) rear axle applications
• Includes four (4) u-bolts, nuts, and washers
• Zinc-plated finish protects against rust and corrosion
• Inside Width: 2.75 inches
• Manufacturer Part Number: 47861

Fits 2001-2005 Honda Civic DX, EX, GX, HX, LX, Si, Hybrid, and Value Package.

Torque Solution Shifter Cable Bushings (TS-SCB-507) are designed to enhance the shifting performance of your 7th-generation Honda Civic by replacing the soft factory rubber bushings at the transmission. Over time, original rubber bushings degrade and flex, leading to a vague or "mushy" feel during gear changes. These precision-engineered replacements eliminate that compliance, providing a more rigid connection between the shifter and the transmission.

The result is a significantly crisper, more direct shift feel that ensures you are engaging gears with confidence and precision. This is a straightforward upgrade for any enthusiast looking to improve the tactile feedback of their manual transmission setup.

• Replaces compliant OEM rubber bushings at the transmission cable ends
• Eliminates excessive shifter play for a direct, mechanical engagement
• Compatible with factory shifter cables
• Manufacturer Part Number: TS-SCB-507

Fits 2003-2006 Mitsubishi Evolution VII, VIII, and IX.

The Torque Solution Billet Rear Differential Mounts (TS-EV-196) are designed to eliminate the excessive drivetrain movement allowed by factory rubber bushings. By securing the rear differential with rigid billet construction, these mounts help reduce wheel hop during hard launches and improve power delivery to the wheels. This is a critical upgrade for Mitsubishis used in high-performance street or track applications where drivetrain stability is paramount.

• CNC machined billet aluminum construction for precision fitment
• Black anodized finish for superior corrosion and wear resistance
• Eliminates rear differential movement and drivetrain slop
• Helps reduce wheel hop and improves power transfer
• Direct replacement for factory mounts
• Manufacturer Part Number: TS-EV-196

Fits 2010-2013 Mazda 3 Mazdaspeed models.

The Torque Solution Shifter Base Bushing Kit (TS-BB-018) is designed to eliminate the vague, spongy feel found in the factory gear selector. By replacing the soft original equipment (OE) rubber bushings that mount the shifter assembly to the chassis, these rigid bushings provide a more direct connection and a solid, precise shifting experience. This upgrade effectively removes shifter flex, ensuring that every gear engagement is crisp and consistent under performance driving conditions.

• Eliminates excessive shifter base movement and play
• Provides a firm, mechanical shifting feel
• Direct replacement for soft factory rubber bushings
• Engineered for a precise fit with simple installation
• Manufacturer Part Number: TS-BB-018

Fits select 2000-2025 Subaru Forester, Impreza, Legacy, Outback, and WRX models.

The SuperPro SPF4297K Rear Differential-to-Subframe Mount Bushing Insert Kit is engineered to reduce excessive drivetrain movement. These inserts fill the voids in the original factory rubber bushings, sharpening throttle response and improving power delivery without the noise, vibration, and harshness (NVH) often associated with full solid mount replacements.

Manufactured in Australia from SuperPro’s proprietary engineering-grade polyurethane, these inserts maintain their physical properties even when exposed to extreme temperatures, oils, and road contaminants. This kit is a direct-fit solution designed to maintain steering geometry, correct alignment, and extend the service life of your drivetrain components.

• Reduces differential movement for improved handling and power transfer
• Engineered from proprietary polyurethane for durability and quiet operation
• Resistant to extreme temperatures, oils, water, and coolant
• Includes a manufacturer lifetime warranty
• Designed and manufactured in Australia
• Manufacturer Part Number: SPF4297K

Fits 2004-2015 Mazda MX-5 Miata and Mazda RX-8.

The SuperPro SPF3404-70K Street Performance Rear Differential Center Support Bushing Kit is engineered to eliminate the excessive deflection found in factory rubber mounts. By securing the differential housing, this kit reduces movement during rapid load changes—specifically when rolling on and off the throttle. This results in sharper throttle response and more direct control over the vehicle's cornering attitude, as the drivetrain reacts more quickly to driver inputs.

Built for durability and performance, these bushings offer a vastly extended service life compared to the soft OEM components. This kit is ideal for drivers seeking improved drivetrain rigidity without the extreme harshness of full motorsport bushings.

• Reduces differential housing deflection under changing loads
• Enhances throttle response and mid-corner adjustability
• Vastly extended service life over soft factory rubber components
• Replaces rear differential center support bushings
• Manufacturer Part Number: SPF3404-70K
• Includes: Full rear differential mount bushing kit
• Warranty: Manufacturer Lifetime Warranty

Fits select 1995-2006 Chrysler, Dodge, Eagle, Mitsubishi, and Plymouth vehicles including Eclipse, Neon, Talon, and PT Cruiser.

The Fidanza Performance aluminum flywheel (MPN 194201) is engineered to significantly reduce rotational mass, providing 40-60% weight savings over heavy factory cast-iron units. By lowering the Moment of Inertia (MOI), this flywheel allows the engine to rev more freely, resulting in faster throttle response and improved acceleration. The body is CNC-machined from high-grade 6061 T6 or 2024 T4 billet aluminum for superior strength and heat dissipation.

For long-term serviceability, this flywheel features a replaceable 1050 steel ring gear and a bolt-on friction plate. This design allows you to refresh the friction surface without replacing the entire flywheel. Note: 1996 and newer applications must use the 1995-specification clutch and flywheel bolt configuration. Always verify the bolt pattern (18 vs 20) on your specific flywheel when ordering replacement friction kits.

• Body Material: Billet 6061 T4 or 2024 T4 Aluminum
• Friction Surface: Heat-treated, bolt-on replaceable steel plate
• Ring Gear: Hardened 1050 Steel, replaceable
• Fasteners: Military-spec hardware for maximum reliability
• Alignment: Stepped dowels for precise fitment on most applications
• Performance: 40-60% lighter than OE units for quicker acceleration
• Manufacturer Part Number: 194201

Fits 1989-1994 Nissan 240SX.

The Exedy Hyper Twin Cerametallic Clutch Kit is engineered for high-performance racing applications, providing the torque capacity and heat dissipation required for competitive driving. This multi-plate system features a focus on reduced rotational inertia and exceptionally fast shifting. The "SD" configuration utilizes sprung center (damper) discs to help absorb drivetrain shock, protecting your transmission while maintaining high clamping force.

Every Hyper Twin kit includes a lightweight forged aluminum clutch cover and an ultra-lightweight chromium-molybdenum (chromoly) flywheel. The grooved center plate ensures improved disc release and cleaner disengagement across the entire RPM range. This system is a field-proven performer in time attack, gymkhana, and circuit racing environments.

• Manufacturer Part Number: NM012SD
• Series: Hyper Twin (SD)
• Disc Type: Cerametallic Multi-Plate (Twin)
• Center Style: Sprung Center (Dampered)
• Cover Type: Forged Aluminum Push-Type
• Flywheel: Included Ultra-Lightweight Chromoly
• Certification: SFI 1.2/1.5 Certified for competitive motorsport use

Fits 2006-2015 Mazda MX-5 Miata models equipped with a 6-speed manual transmission.

The Exedy Stage 1 Organic Clutch Kit is engineered for street performance and light track duty, providing the increased torque capacity needed for modified engines without sacrificing daily drivability. By utilizing premium, burst-resistant friction materials and a higher clamp load pressure plate, this kit (MPN 10810) offers a significant upgrade over the factory unit.

• Premium Friction Material: High-grade organic compounds resist slippage and heat burst during spirited driving.
• Sprung Center Hub: Integrated damper springs reduce drivetrain shock and vibration for smoother engagement and protected internals.
• Increased Clamp Load: The reinforced pressure plate provides the necessary holding power for bolt-on modifications while maintaining a pedal effort similar to stock.
• Reliable Drivability: Designed for the enthusiast who needs performance at the track and refinement on the street.

Fits 2008-2009 BMW 335i (3.0L).

Engineered for the 7-speed Dual Clutch Transmission (DCT), the Clutch Masters aluminum flywheel replaces the heavy factory dual-mass unit to significantly reduce rotating mass. By minimizing inertia, this flywheel allows for quicker engine revs, faster shifts, and reduced turbo lag. To address the vulnerability of DCT clutch baskets—which are prone to cracking when paired with rigid, non-dampened flywheels—Clutch Masters integrated their proven sprung hub technology directly into the hub. This design provides essential dampening for harsh vibrations and high-RPM shifts without sacrificing the responsiveness of a lightweight aluminum component.

• Replaceable Friction Surface: Features a replaceable steel insert, allowing for easy servicing without the need to resurface the entire flywheel.
• Precision Engineering: CNC machined and precision balanced to ensure smooth operation at high engine speeds.
• Safety Certified: SFI Certified for use in high-performance and racing applications.
• Transmission Protection: Internal sprung hub dampens torque spikes to protect internal DCT components.
• Manufacturer Part Number: DCT-055-AL

Fits 1997-2006 Jeep Wrangler (TJ) and 2000-2001 Jeep Cherokee (XJ) equipped with a Dana 30 front and Model 35 rear axle.

The Yukon Gear & Axle Gear & Install Kit Package (YGK005) provides a complete, single-part-number solution for re-gearing your Jeep. Engineered for those increasing tire size, looking for more towing power, or restoring off-road performance, this kit features a 4.56 ratio designed for precise mesh and long-term durability. Yukon utilizes advanced heat-treating and state-of-the-art testing to ensure each gear set meets exacting surface finish and structural standards.

This all-in-one package simplifies the installation process by including both the ring and pinion sets and the necessary master overhaul kits for the front and rear differentials. It eliminates the guesswork of sourcing individual components, ensuring every bearing, seal, and shim is matched for your specific axle configuration.

• Front and Rear Ring & Pinion Gear Sets
• Front and Rear Master Overhaul Kits
• Premium bearings, seals, shims, and assembly hardware
• Manufacturer Part Number: YGK005
• Gear Ratio: 4.56
• Compatible Axles: Dana Spicer 30 (Front) and AMC Model 35 (Rear)

Fits 2007-2021 Toyota Tundra (5.7L).

Restore lost performance and optimize your drivetrain with the Revolution Gear & Axle 5.29 Ratio Gear Package. Specifically engineered for the 5.7L Tundra, this gear set is a critical upgrade for owners running oversized tires or carrying heavy overland equipment. Re-gearing to a 5.29 ratio helps bring the engine back into its power band, reducing strain on the transmission and improving off-the-line torque and highway cruising efficiency.

• Complete gear package designed for 2007-2021 Toyota Tundra 5.7L applications.
• 5.29 gear ratio ideal for compensating for larger tire diameters (typically 35-inch to 37-inch+).
• Precision-lapped ring and pinion sets for smooth engagement and quiet operation.
• High-grade heat-treated steel construction for maximum gear life and durability.
• Manufacturer Part Number: REV-TUNDRA-529

Fits 2005-2012 Porsche Boxster and 2006-2012 Cayman models equipped with manual transmissions.

The OS Giken Super Lock LSD (PR151-HA) is a high-performance clutch-type limited-slip differential engineered for drivers who demand predictable traction on both the street and the track. Unlike standard LSDs that can exhibit jerky engagement, the Super Lock design uses a specialized pressure ring and a high count of friction plates to provide progressive, smooth locking that scales with torque input. This results in superior cornering stability and reduced inside-wheel spin without compromising drivability.

• Manufacturer Part Number: PR151-HA
• Transmission Compatibility: Manual Transmission (MT) Only
• Internal Design: Progressive clutch-type with high friction plate capacity
• Locking Characteristic: Speed and torque sensitive for smooth engagement
• Housing: High-strength steel construction for maximum durability

Full Fitment List:

• 2005-2012 Porsche Boxster (Base, S, Spyder, Limited Edition, Black Edition)
• 2006-2012 Porsche Cayman (Base, S, R)

Restore the engagement surface of your Fidanza aluminum flywheel with the Fidanza 9.85in OD x 6in ID Friction Kit (MPN 229851). This kit allows you to refresh the friction area of your existing flywheel, providing a cost-effective alternative to replacing the entire assembly when the surface becomes worn or heat-spotted.

• Manufactured from 1050 hardened steel for high-performance durability
• Heat-treated friction plate provides optimum grip and extended service life
• Pickled and oiled finish helps prevent corrosion during storage and service
• Precision milled to meet strict tolerances for smooth operation
• Includes all-new replacement hardware for a complete and secure installation

Fits 1978-1983 Porsche 911 SC (Non-Turbo 6-Cylinder).

The Fidanza aluminum flywheel (MPN 199991) is engineered to significantly reduce rotational mass and free up horsepower in the Porsche 911 SC. By replacing the heavy factory unit with a billet 6061 T6 or 2024 T4 aluminum body, this flywheel is 40-60% lighter than stock. This drastic reduction in the Moment of Inertia (MOI) allows the engine to rev more freely, providing immediate throttle response and faster acceleration through the gears.

Built for the rigors of high-performance driving, the assembly features a replaceable 1050 steel friction plate, allowing for easy servicing without replacing the entire flywheel. The hardened steel ring gear and military-spec fasteners provide the strength and reliability required for both street and track applications. Please note that this specific flywheel requires the use of Porsche Bearing #901-102-025-01. Always confirm your specific bolt pattern (18 vs 20) for the friction kit before purchase.

• Construction: Billet 6061 T6 or 2024 T4 Aluminum
• Weight: 40-60% lighter than factory cast iron flywheels
• Friction Surface: Replaceable heat-treated plate for optimum grip
• Ring Gear: Hardened 1050 steel for long-term durability
• Hardware: Military-spec fasteners for maximum strength
• Fitment Note: Requires Porsche Bearing #901-102-025-01
• Manufacturer Part Number: 199991

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

The Fidanza 191241 aluminum flywheel is engineered to reduce rotational mass and improve engine response. By dropping 40-60% of the weight compared to the factory cast iron unit, this flywheel significantly lowers the Moment of Inertia (MOI), allowing the engine to rev more freely and deliver quicker acceleration through the gears. The body is CNC-machined from high-quality 6061 T6 or 2024 T4 billet aluminum for superior strength and thermal dissipation.

Designed for long-term serviceability, this flywheel features a bolt-on replaceable friction plate made from heat-treated steel, allowing you to refresh the clutch surface without replacing the entire assembly. The hardened 1050 steel ring gear is also replaceable and secured with military-spec fasteners for maximum reliability under high-RPM conditions.

• Manufacturer Part Number: 191241
• Body Material: Billet 6061 T6 or 2024 T4 Aluminum
• Friction Surface: Replaceable heat-treated steel plate
• Ring Gear: Hardened 1050 steel
• Weight Reduction: 40-60% lighter than OEM
• Fasteners: Military-spec for increased strength
• Stepped dowels included for precise alignment

Improve throttle response and acceleration in your 1996-2004 Ford Mustang (4.6L) by reducing rotating mass with a Fidanza aluminum flywheel. This 8-bolt flywheel is precision-machined from billet 6061 T6 or 2024 T4 aluminum, making it 40-60% lighter than heavy factory units. By lowering the Moment of Inertia (MOI), your engine can rev more freely and reach its powerband faster.

• Serviceable Design: Features a bolt-on, heat-treated friction plate that can be replaced as a wear item, eliminating the need to resurface or replace the entire flywheel.
• Durable Construction: Equipped with a replaceable hardened 1050 steel ring gear and assembled with military-spec fasteners for maximum reliability.
• Direct Bolt-On: Precision-stepped dowels ensure proper alignment and a secure fit to the crankshaft.

Fits select 1996-2004 Ford Mustang models (Base, GT, Bullitt, Mach 1, and SVT Cobra) equipped with the 4.6L engine and 8-bolt crankshaft. Manufacturer Part Number: 186481.

Fits Nissan Patrol models.

The Fidanza 143191 aluminum flywheel is engineered to significantly reduce rotational mass, offering 40-60% weight savings compared to heavy OE steel components. By lowering the Moment of Inertia (MOI), this flywheel allows the engine to rev more freely, providing faster throttle response and more rapid acceleration. This unit is built for long-term performance with a modular design that features a bolt-on replaceable friction plate, allowing for easy servicing without requiring a full flywheel replacement.

• Body Material: CNC-machined Billet 6061 T6 or 2024 T4 aluminum
• Ring Gear: Replaceable hardened 1050 steel
• Friction Surface: Heat-treated friction plate for optimum clutch grip
• Fasteners: Military-spec hardware for maximum strength and reliability
• Alignment: Stepped dowels for precise fitment (on most applications)
• Weight Reduction: 40-60% lighter than stock for reduced parasitic drag
• Manufacturer Part Number: 143191

Fits 2004-2007 Subaru Impreza WRX STI and WRX STI Limited models equipped with the factory 6-speed manual transmission and R180 rear differential.

This 1-piece carbon fiber driveshaft from The Driveshaft Shop is engineered to significantly reduce rotational mass and improve drivetrain response. By replacing the heavy, multi-piece factory unit, this carbon fiber upgrade provides a more direct connection between the transmission and the rear differential, resulting in faster acceleration and a more connected driving experience. The inherent dampening properties of carbon fiber also help to minimize driveline harmonics and vibrations commonly found in high-performance Subaru builds.

• One-piece carbon fiber tube construction for maximum weight savings
• Precision machined aluminum yokes and heavy-duty universal joints
• Direct replacement for the factory multi-piece driveshaft
• Reduces drivetrain power loss and improves throttle response
• Designed specifically for the R180 rear differential and 6-speed manual gearbox
• Manufacturer Part Number: 610098
• Reference Number: SUSH2-C

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

The Action Clutch Stage 4 (1MD) Clutch Kit is engineered for dedicated track environments, including drag, road racing, and drifting. Designed for low to mild horsepower vehicles requiring rapid engagement, this kit offers a significant 170% increase in holding capacity over the factory unit. The heart of the 1MD system is the unsprung MIBA Ceramic puck disc, which provides aggressive friction and maximum power transfer with minimal slip.

Built to withstand high-heat cycles and rigorous shifting, the kit features a heavy-duty single diaphragm pressure plate and reinforced drive straps to maintain structural integrity under load. As an unsprung ceramic kit, users should expect quicker engagement and some initial clutch chatter, which typically stabilizes after a proper break-in period.

• Manufacturer Part Number: ACR-0661
• Disc Material: Unsprung MIBA Ceramic
• Holding Capacity: 170% over OEM
• Pressure Plate: Heavy-duty single diaphragm with reinforced straps
• Applications: Race, Drag, Road Racing, and Drift
• Fitment: 2006-2011 Honda Civic Si (K20Z3 engine)

Fits 1994-1999 Dodge Ram 2500 and 3500 Base models with the Dana 60 front differential.

This Yukon Gear Disconnect Axle Delete Kit is engineered to eliminate the failure-prone factory vacuum disconnect system on second-generation Dodge trucks. By replacing the weak two-piece axle design with a high-strength one-piece 4340 chromoly shaft, you gain significant drivetrain reliability and simplified operation. This conversion is a common upgrade for owners who require dependable four-wheel-drive engagement in demanding conditions.

• Materials: High-strength 4340 Chromoly steel construction
• Axle Length: 38.0 inches
• Spline Count: 30-spline inner
• MPN: YA W26030
• System Impact: Removes CAD (Center Axle Disconnect) vacuum feature
• Included Components: One-piece inner axle shaft, vacuum block-off plate, gasket, and specialized axle seal

Replacing the factory two-piece setup with this solid shaft ensures that power is delivered consistently to the wheels without relying on vacuum lines or mechanical slide collars that are known to fail over time.

Fits 2017-2021 and 2023-2025 Honda Civic Type R (2.0L).

The XClutch Stage 2R Extra Heavy Duty clutch kit is engineered specifically for track-focused performance, providing the high torque capacity and thermal stability required for competitive driving. This kit utilizes a single-disc, sprung ceramic friction material mated to a high-performance pressure plate. By optimizing the pivot point and diaphragm design, XClutch delivers increased clamping force without compromising the positive pedal feel necessary for precise control.

• Type: Single Disc Sprung Ceramic
• Design: Extra Heavy Duty Diaphragm Style
• Application: Recommended for Track Use
• Construction: High-performance pressure plate with advanced ceramic technology
• Torque Management: Engineered for increased heat capacity and torque holding
• MPN: XKHN24537-1R

Kit Includes: Friction Disc, Pressure Plate, Release Bearing, Flywheel, Pilot bearing/bushing, and Alignment Tool.