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Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
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Cusco
Cusco is one of the most respected names in Japanese motorsport engineering, building precision chassis and suspension components since 1977. From World Rally Championship stages to grassroots autocross, their parts are proven to enhance rigidity, handling, and driver confidence.
This collection brings together our full lineup of Cusco performance upgrades:
- Strut tower bars and chassis braces that eliminate flex
- Adjustable coilovers and lowering springs for track-ready damping
- Limited-slip differentials (LSD) for maximum traction
- Sway bars, control arms, and camber plates to dial-in suspension geometry
Every Cusco product is engineered with meticulous attention to material quality and tolerances—using high-strength steel and aircraft-grade aluminum where it matters. Whether you're building a time-attack monster or simply sharpening your daily driver, you'll find the right chassis and suspension solutions here.
393 products
393 products
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Fits select 2013-2022 Toyota 86/GR86, Subaru BRZ, and Scion FR-S (0.6L).
The Cusco Oil Catch Tank Set (MPN 6C1 009 A) is an essential upgrade for maintaining engine longevity and performance by capturing oil, moisture, and blow-by gas before they can enter the intake manifold. By preventing these contaminants from re-entering the combustion chamber, this kit reduces carbon buildup on valves and ensures a cleaner air-fuel mixture. This specific set features a 0.6L round tank with a horizontal mounting design, optimized for clearance and ease of installation in the ZN6/ZC6 and ZN8/ZD8 engine bays.
- Manufacturer Part Number: 6C1 009 A
- Capacity: 0.6L Round Type
- Mounting: Horizontal orientation with vehicle-specific brackets
- Construction: High-polish finish aluminum for corrosion resistance and engine bay aesthetics
- Included: Catch tank, mounting bracket, hoses, and all necessary installation hardware
Fits 2022-2024 Subaru WRX (VB chassis).
The Cusco Type OS Rear Strut Tower Brace is designed to increase chassis rigidity by connecting the rear shock towers. This reduction in chassis flex helps maintain consistent suspension geometry during aggressive cornering, resulting in improved steering response and more predictable handling characteristics. As one of Cusco's most popular upgrades, the Type OS bar provides a functional performance benefit without compromising trunk utility.
- High-strength oval section aluminum shaft with a polished finish
- Steel end plates finished in signature Cusco Blue for corrosion resistance
- Direct bolt-on installation to factory mounting points
- Increases torsional rigidity and reduces unibody flex
- Engineered specifically for the 2022+ Subaru WRX chassis
- Manufacturer Part Number: 6A9 541 C
Fits 2022-2024 Subaru WRX models.
The Cusco Power Brace Rear Cross Member (6A9 492 RM) is designed to increase the structural integrity of the chassis by reinforcing the rear cross member mounting points. Under aggressive driving or track conditions, the factory chassis can experience flex, which negatively impacts suspension geometry and tire contact patches. This brace minimizes that distortion, providing more predictable handling and a more communicative rear end during high-load cornering.
- Reduces chassis flex for improved suspension performance and handling response
- Constructed from high-strength steel for maximum rigidity
- Finished in Cusco's signature blue powder coat for long-term corrosion resistance
- Direct bolt-on installation using existing factory mounting points; no drilling or welding required
- Manufacturer Part Number: 6A9 492 RM
Fits select 2018-2024 Subaru WRX, Crosstrek, and Forester models.
The Cusco Power Brace Front Cross Member (MPN 6A9 492 F) is engineered to enhance chassis rigidity by reinforcing the front subframe assembly. By minimizing structural flex under high-load conditions, such as aggressive cornering or heavy braking, this brace helps maintain proper suspension geometry for more precise steering response and improved handling stability.
- Increases front chassis stiffness to reduce subframe deflection and longitudinal movement
- Improves steering feedback and front-end precision during spirited driving
- Designed for a direct-fit installation on compatible Subaru global platforms
- High-strength construction to withstand the rigors of performance use
- Manufacturer Part Number: 6A9 492 F
Fits 2022 Subaru WRX.
The Cusco 21mm Rear Anti-Sway Bar is engineered to reduce body roll and improve lateral stability without compromising ride quality. By increasing the torsional rigidity of the rear suspension, this bar helps mitigate understeer and provides flatter cornering for more neutral handling characteristics. This is a critical upgrade for enthusiasts looking to sharpen steering response and maximize the contact patch of the rear tires during spirited driving or track use.
Built to exact tolerances, this rear sway bar replaces the factory unit and is designed to work with original suspension mounting points. The 21mm diameter provides a significant increase in roll stiffness over the OE bar, ensuring a more planted and predictable chassis feel.
- Part Type: Rear Anti-Sway Bar
- Diameter: 21mm
- Material: High-strength spring steel
- Finish: Cusco Blue powder coat
- MPN: 6A9 311 B21
Fits 2022 Subaru WRX.
The Cusco Front Sway Bar is engineered to reduce body roll and increase the roll stiffness of your vehicle's suspension system. By linking the left and right suspension components, this 26mm bar minimizes chassis sway during high-speed cornering and sudden directional changes, resulting in more predictable handling and improved tire contact patches.
- Diameter: 26mm
- Position: Front
- Material: High-strength steel construction
- Finish: Signature Cusco Blue powder coat for superior corrosion resistance
- Improves steering response and high-speed stability
- Includes required bushings for a complete installation
- Manufacturer Part Number: 6A9 311 A26
Fits 2019+ Subaru Forester SK9 models (2.5L).
The Cusco Power Brace Rear Cross Member Side (6A8 492 RMS) is designed to strengthen the chassis of the Subaru Forester by reinforcing the rear subframe assembly. By tying the rear cross member to the vehicle body, this brace significantly reduces chassis flex and unwanted movement during cornering and heavy suspension loading. This ensures that your suspension geometry remains stable, providing more consistent handling and improved rear-end traction.
- Increases overall chassis rigidity and minimizes rear subframe deflection
- Fabricated from high-strength steel with Cusco's signature blue powder coat finish for durability and corrosion resistance
- Direct bolt-on installation utilizing existing factory mounting points for a secure fit
- Improves steering feedback and overall vehicle stability
- Includes all necessary hardware for installation
- Manufacturer Part Number: 6A8 492 RMS
Fits 2019+ Subaru Forester (SK9) models equipped with the 2.5L engine.
The Cusco Power Brace Rear Cross Member is engineered to minimize chassis flex by reinforcing the rear subframe mounting points. By tying the cross member more securely to the vehicle's body, this brace helps maintain suspension geometry under load, providing more predictable handling and increased rear-end stability whether you are on the road or navigating light trails.
- Chassis Reinforcement: Reduces structural deflection for improved handling response.
- Durable Construction: Fabricated from high-strength steel to withstand stresses of daily driving and spirited use.
- Corrosion Resistance: Finished in the signature Cusco Blue powder coat for long-lasting protection.
- Simple Installation: Designed as a direct bolt-on component that utilizes existing factory mounting points for a precise fit.
- Manufacturer Part Number: 6A8 492 RM
Fits 2015 Subaru WRX (Non-STI models only).
The Cusco Power Brace Front (6A5 492 FS) is engineered to reinforce the vehicle chassis by connecting critical stress points. By increasing structural rigidity, this brace minimizes body flex and distortion during high-load cornering, resulting in sharper steering response and more predictable handling characteristics. It is a direct bolt-on solution that provides a noticeable improvement in chassis feel for spirited driving and track applications.
- Location: Front Chassis
- Material: High-strength steel construction
- Finish: Signature Cusco Blue powder coat for corrosion resistance
- Installation: Utilizes factory mounting points for a precise fit
- Part Number: 6A5 492 FS
Fits 2015 Subaru WRX (Non-STI models only).
Sharpen your vehicle's handling and significantly reduce body roll with the Cusco Front Sway Bar. By increasing the roll stiffness of the front suspension, this 26mm bar allows for flatter cornering and improved steering response during aggressive driving or track use. This solid sway bar is engineered to replace the factory unit, utilizing existing mounting points for a direct-fit installation that maintains the vehicle's suspension geometry.
- Bar Diameter: 26mm
- Position: Front
- Construction: High-strength spring steel
- Finish: Signature Cusco Blue powder coat
- MPN: 6A5 311 A26
Fits 2022-2024 Subaru WRX models.
The Cusco Street Zero-A Coilover Kit provides a comprehensive suspension upgrade for the VB-chassis Subaru WRX, engineered to bridge the gap between daily street drivability and competitive track performance. This kit utilizes a twin-tube shock design, which offers a larger oil capacity to improve thermal stability and maintain consistent damping during aggressive driving sessions.
With 40-way damping adjustment, drivers can fine-tune the rebound and compression characteristics to match specific road conditions or tire setups. The full-length adjustment system allows for precise ride height changes by moving the lower bracket, ensuring that the full suspension stroke and spring preload remain optimal regardless of how low the vehicle is set.
- 40-way needle valve damping adjustment for precise tuning
- Twin-tube internal construction for improved ride quality and oil volume
- Full-length height adjustability independent of spring preload
- Precision-cut brackets and high-strength steel shock bodies
- Designed to work with factory mounting points for a direct-bolt installation
- Manufacturer Part Number: 6A3 61N CN
Fits 2022-2024 Subaru WRX models.
The Cusco Type OS Front Strut Tower Brace is a fundamental chassis reinforcement designed to eliminate strut tower flex during aggressive cornering. By bridging the gap between the front strut towers, this brace maintains consistent suspension geometry, providing sharper steering turn-in and more predictable handling feedback.
Built for both performance and aesthetics, the Type OS features a lightweight yet high-rigidity oval cross-section aluminum shaft. This low-profile design ensures maximum clearance within the engine bay. The bar is anchored by high-strength steel end plates finished in the signature Cusco blue powder coat, providing a direct bolt-on fit to the factory mounting points.
- Reduces chassis flex to improve suspension alignment stability under load
- Lightweight Type OS oval aluminum bar for high torsional rigidity
- Durable steel end brackets finished in iconic Cusco blue
- Simple bolt-on installation with no drilling or modification required
- Manufacturer Part Number: 6A2 540 A
Fits 2022-2024 Subaru WRX and 2018-2024 Subaru Crosstrek models.
Achieve precise rear alignment and correct suspension geometry on your Subaru with the Cusco Adjustable Rear Camber Control Arm Set. On vehicles with lowered ride heights, factory adjustment often falls short, leading to excessive negative camber and premature tire wear. These Cusco arms replace the non-adjustable factory units, providing a wide range of adjustment to optimize the tire contact patch for both street performance and track handling.
Constructed from high-strength steel and finished in signature Cusco Blue, these arms are engineered for durability under heavy cornering loads. The turnbuckle adjustment mechanism allows for efficient on-car alignment changes without the need to disconnect the arm from the subframe or hub assembly.
- Direct replacement for factory rear lower control arms
- Turnbuckle design for convenient, precise on-vehicle adjustment
- High-strength steel construction with durable powder-coated finish
- Corrects camber settings on lowered vehicles to improve handling and tire life
- Manufacturer Part Number: 6A2 474 LN
Fits select 2018-2024 Subaru Crosstrek and 2022-2024 WRX models. The Cusco Adjustable Front Camber Control Arm Set (6A2 474 LA) is engineered to provide precise suspension geometry correction for lowered vehicles and dedicated performance builds. By replacing the fixed factory components, these arms allow for the fine-tuning of front camber angles, ensuring a maximized tire contact patch and improved lateral grip during spirited driving or track sessions.
- Manufacturer Part Number: 6A2 474 LA
- Function: Provides adjustable front camber to correct alignment and optimize handling
- Fitment: Direct replacement for OE control arms on supported Subaru chassis
- Build Quality: Heavy-duty construction designed to withstand high-stress street and track environments
- Finish: Signature Cusco blue finish for corrosion resistance and durability
Fits Subaru models equipped with EJ20 and EJ25 engines (2.5L).
The Cusco Billet Aluminum Engine Pitching Stop is engineered to replace the factory's compliant plastic and soft rubber unit. By significantly reducing the fore-and-aft movement (pitching) of the engine and transmission during aggressive acceleration and gear changes, this component provides a more direct throttle feel and improves overall drivetrain rigidity.
Manufactured from high-strength billet aluminum and finished in Cusco's signature blue anodizing, this pitching stop features heavy-duty (HD) rubber bushings. These bushings are stiffer than the OE equivalents, striking a balance between precise power delivery and manageable NVH (noise, vibration, and harshness) levels for street and track use.
- Construction: High-strength billet aluminum
- Finish: Blue anodized for durability and corrosion resistance
- Bushings: High-durometer heavy-duty rubber
- Function: Reduces engine pitching and improves throttle response
- Manufacturer Part Number: 6A1 911 PS
Fits 2015 Subaru Impreza (VA Chassis) USDM models.
The Cusco Brake Cylinder Stopper (BCS) is a performance-oriented reinforcement designed to eliminate firewall flex during heavy braking. In many factory configurations, the force applied to the brake pedal is enough to cause the firewall to deflect, allowing the master cylinder to shift forward. This movement creates a spongy or inconsistent pedal feel. The Cusco BCS functions as a rigid brace, securing the master cylinder against the shock tower to ensure every millimeter of pedal travel is converted into braking force.
- Direct bolt-on installation for USDM Left-Hand Drive (LHD) vehicles
- Significantly reduces firewall flex to provide a firmer, more communicative brake pedal
- Improves braking modulation and confidence during spirited driving or track use
- Durable construction designed to withstand high engine bay temperatures and mechanical stress
- Manufacturer Part Number: 6A1 561 ALHD
Fits 2015 Subaru Impreza (VA Chassis) USDM models.
Improve your vehicle's handling and chassis rigidity with the Cusco Strut Tower Bar. This performance upgrade is engineered to bridge the gap between your front shock towers, significantly reducing structural flex during aggressive cornering. By stabilizing the suspension mounting points, this bar ensures that your suspension geometry remains consistent, resulting in sharper turn-in and more predictable steering feedback.
- Reduces chassis distortion to improve handling and steering response
- High-strength aluminum bar construction with durable steel end brackets
- Direct bolt-on design for easy installation using factory mounting points
- Engineered specifically for the VA chassis platform
- Manufacturer Part Number: 6A1 541 AX
Fits 2015 Subaru Impreza USDM Model (VA Chassis). This Cusco Front Strut Tower Bar is engineered to reduce chassis flex by tying the tops of the front shock towers together. During aggressive cornering, the vehicle chassis experiences torsion; this bar provides a structural bridge that increases front-end rigidity, leading to sharper steering response and more predictable handling.
- Direct bolt-on installation to factory mounting points
- Increases structural integrity for improved cornering performance
- Reduces suspension geometry changes under heavy loads
- High-strength construction designed for a precise fit
- Manufacturer Part Number: 6A1 540 A
Fits 2015-2021 Subaru WRX and WRX STI.
The Cusco Power Brace Seat Rail Plus Set is engineered to increase the structural rigidity of the VA chassis by reinforcing the floor area around the seat rail mounting points. By tying these high-stress points together, this brace reduces floor flex and tunnel deformation during aggressive cornering, providing the driver with more consistent seat positioning and improved tactile feedback through the chassis.
- Increases overall chassis stiffness for sharper handling response
- Reduces floorboard flex under high-G cornering loads
- Complete set includes both Right and Left side braces
- Direct bolt-on installation to factory mounting points
- Signature Cusco Blue powder-coated finish for durability and corrosion resistance
- Manufacturer Part Number: 6A1 492 SP
Fits 2015 Subaru Impreza USDM models (VA Chassis).
The Cusco Power Brace Rear Member is designed to increase chassis rigidity by reinforcing the rear subframe area. By minimizing structural flex during aggressive cornering or heavy loading, this brace ensures the suspension geometry remains consistent, providing more predictable handling and improved rear-end stability.
- Manufactured from high-strength steel for maximum structural integrity
- Signature Cusco Blue powder-coated finish for long-lasting corrosion resistance
- Engineered to bolt directly to factory mounting points for a straightforward installation
- Reduces rear member movement to sharpen steering response and chassis feedback
- Manufacturer Part Number: 6A1 492 RM
Fits select 2008-2021 Subaru WRX, WRX STI, and Levorg (GRB, GVB, VAB, VAG, VMG, VM4).
The Cusco Power Brace Rear Lateral Sway Bar Bracket is engineered to eliminate chassis flex at the rear sway bar mounting points. Under heavy cornering, the factory subframe and mounting brackets can deflect, which reduces the effective rate of the sway bar and compromises handling precision. This brace reinforces the mounting area, ensuring your suspension maintains its geometry for sharper turn-in and more predictable rear-end behavior.
- Manufacturer Part Number: 6A1 492 RL
- Reduces rear subframe and sway bar mount deflection during high-load cornering
- Direct bolt-on installation into factory mounting points
- Heavy-duty steel construction for maximum rigidity
- Signature Cusco Blue powder-coated finish for corrosion resistance
- Essential for vehicles with upgraded aftermarket sway bars
Fits the 2015 Subaru Impreza USDM Model (VA Chassis).
The Cusco Power Brace Rear End is engineered to stiffen the vehicle's structural integrity by connecting key points of the chassis. By minimizing body flex under high-load cornering, this brace helps maintain consistent suspension geometry, leading to more predictable handling and improved rear-end stability. It is an essential upgrade for drivers looking to sharpen steering response and bridge the gap between street comfort and track-ready performance.
- Increases chassis rigidity and reduces body distortion
- Improves suspension response and cornering stability
- Direct bolt-on installation using factory mounting points
- Durable construction designed for high-stress automotive environments
- Manufacturer Part Number: 6A1 492 RE
Fits the 2015 Subaru Impreza USDM Model (VA Chassis).
The Cusco Power Brace Front Cross Member (6A1 492 M) is designed to increase chassis rigidity by reinforcing the front cross member area. By minimizing chassis flex during cornering and high-load maneuvers, this brace helps maintain consistent suspension geometry, providing the driver with more precise steering response and improved handling stability.
- Reduces chassis distortion under heavy cornering loads
- Improves steering feedback and front-end turn-in
- High-strength steel construction for maximum durability
- Signature Cusco Blue powder-coated finish for corrosion protection
- Direct bolt-on installation using factory mounting points
- Manufacturer Part Number: 6A1 492 M
Fits 2015 Subaru Impreza USDM models (VA Chassis).
The Cusco Power Brace Front Sides are engineered to increase chassis rigidity by reinforcing the vehicle's structural integrity at critical points. By minimizing body flex during aggressive cornering and high-load transitions, these braces ensure the suspension geometry remains consistent, resulting in more precise steering response and improved handling stability.
- Reduces chassis distortion and improves tactile steering feedback
- Constructed from high-strength steel for maximum structural durability
- Finished in signature Cusco Blue coating for long-term corrosion resistance
- Designed for a direct bolt-on installation using existing factory mounting points
- Manufacturer Part Number: 6A1 492 FS
Fits the 2015 Subaru Impreza USDM Model (VA Chassis).
The Cusco Power Brace Front Member is engineered to increase chassis rigidity by reinforcing the front crossmember. By minimizing structural flex during aggressive cornering and heavy braking, this brace improves steering response and maintains more consistent alignment geometry. It is a critical upgrade for drivers looking to sharpen the front-end feel of the VA chassis.
- Increases overall chassis stiffness and reduces front member distortion
- Constructed from high-strength steel for maximum durability
- Finished in signature Cusco Blue powder coat for corrosion resistance
- Direct bolt-on design utilizing factory mounting points
- Manufacturer Part Number: 6A1 492 FM
Fits Subaru WRX STI (GRB, GVB, VAB), WRX (VAG), and Forester (SJ5, SJG) models.
The Cusco Rear Differential Carrier (6A1 489 A) is engineered to replace the factory unit and eliminate the excessive movement often found in the stock drivetrain setup. By providing a more rigid mounting solution for the rear differential, this carrier minimizes "slop" during hard acceleration and shifting, ensuring that power is transferred to the ground more efficiently and with improved throttle response.
- High-strength steel construction designed for high-torque applications
- Signature Cusco Blue powder-coated finish for superior corrosion resistance
- Reduces differential pitch and movement under heavy load
- Maintains proper drivetrain alignment during aggressive driving
- Direct bolt-on replacement for the OE carrier
- Manufacturer Part Number: 6A1 489 A
Fits 2015-2024 Subaru WRX and 2022-2024 Toyota GR86 / Subaru BRZ.
Designed for precision alignment, the Cusco Rear Camber Adjustable Lateral Control Arm allows for fine-tuning of rear camber settings, which is essential for vehicles with lowered ride heights. By correcting the suspension geometry, these arms help maintain a proper tire contact patch, reducing uneven tire wear and improving cornering stability. The turnbuckle adjustment design enables easy on-car changes without removing the arm from the vehicle.
- Replaces factory rear lateral links to provide precise camber adjustment
- Equipped with high-quality pillowball bushings to eliminate deflection and improve suspension feedback
- Constructed from high-strength steel with Cusco's signature blue powder-coat finish for corrosion resistance
- Ideal for track-oriented setups and lowered street cars needing alignment correction
- Manufacturer Part Number: 6A1 474 LN
Fits 2015 Subaru Impreza USDM Model (VA Chassis).
The Cusco Adjustable Rear Toe Lateral Arm is a critical upgrade for drivers looking to optimize suspension geometry and handling precision. Designed specifically for the VA chassis, this arm allows for precise toe-angle correction—an essential adjustment for vehicles with lowered ride heights that have moved out of factory alignment specifications. By replacing the compliant factory rubber bushings with high-rigidity pillowball (spherical) joints, this component eliminates unwanted suspension deflection and ensures the rear tires maintain a consistent contact patch during aggressive cornering and high-speed maneuvers.
- Precision Alignment: Features a turnbuckle adjustment system for accurate on-car rear toe tuning without removing the arm.
- Pillowball Bushings: Equipped with high-quality spherical bearings to provide a more direct steering feel and improved suspension feedback.
- Heavy-Duty Construction: Manufactured from high-strength steel with the signature Cusco Blue powder-coated finish for superior durability and corrosion resistance.
- Performance Stability: Stabilizes rear-end geometry under heavy loads to prevent toe-steer and unpredictable handling characteristics.
- Manufacturer Part Number: 6A1 474 LA
Fits 2015 Subaru Impreza USDM models (VA Chassis).
The Cusco Rear Sway Bar is a fundamental suspension upgrade engineered to reduce body roll and increase the roll stiffness of your vehicle. By installing this 22mm solid bar, you will experience flatter cornering and more predictable handling during spirited driving. This upgrade effectively links the left and right sides of the suspension, maintaining a more consistent tire contact patch under lateral load without significantly compromising ride quality.
- Diameter: 22mm
- Reduces body roll for improved cornering stability
- Enhances steering response and turn-in precision
- Designed specifically for the VA chassis architecture
- Direct replacement for the factory rear sway bar
- Manufacturer Part Number: 6A1 311 B22
Fits the 2015 Subaru Impreza WRX STI USDM Model (VA Chassis).
Improve the cornering dynamics and lateral stability of your VA chassis with the Cusco 26mm Front Sway Bar. This performance upgrade increases the torsional rigidity of your front suspension, effectively reducing body roll during high-speed cornering and rapid transitions. By maintaining a flatter cornering attitude, it ensures a more consistent tire contact patch and sharper steering response without requiring a significant increase in spring rates.
- Diameter: 26mm
- Position: Front
- Material: High-strength steel construction
- Reduces chassis roll for improved handling and driver feedback
- Compatible with 2015 USDM WRX STI models
- Manufacturer Part Number: 6A1 311 A26
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