Fits 2008-2014 Subaru Impreza WRX STI, WRX STI Limited, and WRX STI Special Edition.

The Cusco Oil Catch Tank is an essential upgrade for maintaining the health and efficiency of your EJ-series engine. By intercepting blow-by gases and oil mist before they can recirculate into the intake tract, this tank prevents carbon buildup on valves and keeps your intercooler clean. This is especially critical for turbocharged vehicles like the GRB and GVB chassis, where oil contamination can lower the effective octane of your fuel and lead to detonation.

• Capacity: 0.4L
• Vehicle-specific fitment for GRB/GVB chassis
• Includes specialized L-shape mounting bracket and hardware
• High-polish finish for a professional engine bay aesthetic
• Prevents intake tract oil contamination
• Manufacturer Part Number: 692 009 A

Fits select 2008-2014 Subaru Impreza WRX, WRX STI, and 2010-2012 Legacy 2.5GT.

The Cusco Power Brace Rear Member Side is engineered to increase chassis rigidity by reinforcing the rear suspension crossmember attachment points. By minimizing subframe movement and flex during high-load cornering, this brace helps maintain consistent suspension geometry for more predictable handling and improved rear-end stability. It is a critical upgrade for enthusiasts looking to eliminate the vague feeling often caused by OE chassis deflection.

• Construction: High-strength steel with an oval shaft cross-section for a high strength-to-weight ratio.
• Finish: Signature Cusco Blue powder coat for long-term corrosion resistance and durability.
• Installation: 100% bolt-on design that utilizes existing factory mounting points; no drilling or fabrication required.
• Chassis Codes: Specifically designed for GRB, GH8, GVB, SH5, BR9, and BM9 platforms.
• Manufacturer Part Number: 687 492 RS

Fits select 2013-2017 Toyota 86, Subaru BRZ, and Scion FR-S (2.0L). See the fitment details below for specific submodel compatibility.

Designed for both track-day safety and street utility, the Cusco Swivel Joint Front Tow Hook provides a robust, functional recovery point that bolts directly into the factory bumper location. This part features a swivel hinge that allows the ring to fold down 90 degrees when not in use, maintaining a cleaner profile and reducing the risk of snagging during transport or storage. It is an essential upgrade for enthusiasts participating in sanctioned racing events where a designated tow point is mandatory.

• Manufacturer Part Number: 687 017 F
• Location: Front
• Direct bolt-on installation to OEM mounting points
• Swivel joint design for adjustable 90-degree folding
• High-strength construction suitable for vehicle recovery and towing

Fits 2005-2009 Subaru Legacy models including 2.5i, 3.0 R, GT, and spec.B.

The Cusco Type OS Rear Strut Tower Bar is an essential chassis upgrade designed to eliminate rear structural flex during aggressive cornering. By physically linking the tops of the rear strut towers, this bar helps maintain consistent suspension geometry, providing sharper turn-in and more predictable handling for the BP9 chassis Legacy.

Engineered with a high-strength aluminum hollow oval shaft, the Type OS design provides maximum rigidity while keeping weight to a minimum. The steel end plates are finished in Cusco's signature blue powder coat for superior corrosion resistance and a professional look under the rear deck. This unit is a direct bolt-on component that utilizes factory mounting points, requiring no specialized tools for installation.

• Manufacturer Part Number: 684 541 AN
• Product Series: Type OS (Oval Shaft)
• Position: Rear
• Material: High-strength aluminum shaft with steel end brackets
• Finish: Polished aluminum shaft with blue powder-coated plates
• Fitment: 2005-2009 Subaru Legacy (All Trims)

Fits 2005-2009 Subaru Legacy models, including 2.5i, GT, and 3.0 R variants.

The Cusco Type OS (Oval Shaft) Front Strut Tower Bar (684 540 A) is a fundamental chassis reinforcement designed to increase the rigidity of the front suspension geometry. By bridging the gap between the strut towers, this brace prevents tower flex during high-load cornering, ensuring the tires maintain a more consistent contact patch and improving overall steering precision.

• High-tension aluminum oval shaft construction for superior strength-to-weight ratio
• Steel end plates precision-engineered for a direct bolt-on fit to factory mounting points
• Reduces chassis distortion to provide more predictable handling and feedback
• Installation requires no permanent vehicle modifications
• Manufacturer Part Number: 684 540 A

Fits 2005-2009 Subaru Legacy (2.5L / 3.0L).

The Cusco Lower Arm Bar Ver. II is a multi-point chassis reinforcement designed to connect the lower suspension mounting points. By bracing the rear subframe and lower arm pivots, this bar significantly reduces chassis flex under heavy cornering loads. This ensures the suspension maintains its designed alignment and geometry, providing more predictable handling and improved rear-end stability for the BP9/BL5 chassis platform.

• Construction: High-strength, lightweight tubular aluminum design.
• Function: Connects multiple points on the lower arm for superior rigidity over Ver. I braces.
• Finish: Signature Cusco Blue coating for long-term corrosion resistance.
• Installation: Direct bolt-on to factory mounting points with included hardware where required.
• Manufacturer Part Number: 684 478 A

Fits 2005-2009 Subaru Legacy (2.5i, 3.0 R, GT, Limited, and spec.B models).

The Cusco Lower Arm Bar Ver. II is a high-performance chassis reinforcement designed to connect multiple mounting points on the front lower control arms. By linking these points, the brace significantly reduces chassis flex and prevents alignment changes during hard cornering and aggressive driving. This results in a more rigid front end, sharper steering response, and improved tire contact for better traction.

• Multi-point reinforcement for maximum chassis rigidity
• Maintains precise suspension geometry under heavy loads
• High-strength tubular construction for durability without excessive weight
• Direct bolt-on installation using factory mounting points
• Finished in signature Cusco Blue for corrosion resistance
• Manufacturer Part Number: 684 477 A

Fits Subaru Legacy Wagon (BP5) models.

The Cusco Lower Arm Bar Version 1 is a performance chassis brace designed to increase the structural rigidity of the front suspension mounting points. By connecting the lower control arm pivots, this brace prevents chassis flex and minimizes suspension geometry changes during aggressive cornering or hard braking. This leads to more precise steering response, improved traction, and better overall handling consistency.

• Increases chassis rigidity and reduces suspension mounting point distortion
• Enhances steering feedback and maintains alignment under load
• Constructed from high-strength materials for maximum durability and weight savings
• Finished in signature Cusco Blue powder coating for long-lasting corrosion resistance
• Simple bolt-on installation using factory mounting points
• Manufacturer Part Number: 684 475 A

Fits 2003-2009 Subaru Legacy.

The Cusco Rear Harder Sway Bar Brackets are engineered to solve a common weak point in the Subaru suspension system. When upgrading to a larger-diameter aftermarket sway bar, the increased torsional loads can cause the factory stamped-steel brackets to flex or even snap. These Cusco reinforced brackets provide a much more rigid mounting solution, ensuring that your sway bar energy is transferred directly into the chassis for improved handling response and flatter cornering.

• High-strength steel construction designed to resist bending and fatigue
• Signature Cusco Blue powder-coated finish for corrosion resistance
• Direct-fit replacement for the original equipment (OE) rear brackets
• Recommended for use with upgraded or stiff rear anti-sway bars
• Manufacturer Part Number: 684 316 A

Fits 2005-2009 Subaru Legacy (2.5i, 3.0 R, GT, GT Limited, and GT spec.B).

The Cusco rear sway bar is a core suspension upgrade designed to reduce body roll and improve cornering stability without sacrificing daily ride quality. By increasing the torsional rigidity of the rear suspension, this 21mm bar keeps the chassis flatter through high-speed turns, providing more predictable handling and improved tire contact patches.

Each bar is manufactured from high-strength spring steel and finished in Cusco's signature blue powder coat for long-term corrosion resistance. This component is designed as a direct replacement for the factory unit and bolts into the original mounting points for a straightforward installation.

• Diameter: 21mm
• Position: Rear
• Material: High-strength spring steel
• Finish: Cusco Blue powder coat
• Manufacturer Part Number: 684 311 B21

Fits select 2005-2014 Subaru Legacy and Impreza WRX models (Turbo / 3.0L).

The Cusco 23mm Front Sway Bar is engineered to reduce body roll and enhance steering precision by increasing the torsional rigidity of your Subaru's front suspension. By better controlling the weight transfer during cornering, this bar helps maintain a flatter stance and keeps the tire contact patches optimized for maximum grip. It is a direct-fit upgrade that replaces the factory sway bar, utilizing existing mounting points for a bolt-on installation.

• Diameter: 23mm
• Position: Front
• Manufacturer Part Number: 684 311 A23
• Finish: Cusco Blue powder coat
• Improves turn-in response and high-speed stability

Full Vehicle Fitment:

• 2008-2014 Subaru Impreza WRX (Limited / Premium)
• 2009-2010 Subaru Impreza 2.5 GT
• 2005-2009 Subaru Legacy GT (Limited / spec.B)
• 2006-2009 Subaru Legacy 2.5i (Limited / Special Edition)
• 2008-2009 Subaru Legacy 3.0 R (Limited)
• 2005 Subaru Legacy i / Limited

Fits 2003-2008 Subaru Forester SG5 models.

The Cusco Power Brace Front Member is engineered to increase chassis rigidity by reinforcing the front crossmember area. By minimizing body flex under heavy cornering or braking, this brace helps maintain consistent suspension geometry, resulting in sharper steering response and more predictable handling characteristics. Designed for enthusiasts who want to maximize the structural integrity of their SG5 chassis without sacrificing ground clearance.

• Increases front-end structural rigidity and reduces chassis distortion
• Constructed from high-strength steel for maximum durability
• Corrosion-resistant Cusco Blue powder-coated finish
• Direct bolt-on installation using existing factory mounting points
• Manufacturer Part Number: 676 492 FM

Fits 2003-2008 Subaru Forester (SG5).

The Cusco Power Brace Engine Room (676 492 ER) is engineered to enhance chassis rigidity by reinforcing the structural integrity of the engine bay. By tying critical mounting points together, this brace minimizes chassis flex during aggressive cornering or heavy suspension loading, ensuring your alignment geometry remains consistent for improved steering response and handling predictability.

• Reduces chassis distortion for sharper, more precise steering
• Constructed from high-strength steel for maximum durability
• Finished in signature Cusco Blue powder coat for corrosion resistance
• Direct bolt-on design utilizes factory mounting locations for easy installation
• Designed specifically for the SG5 Forester chassis
• Manufacturer Part Number: 676 492 ER

Fits 1998-2008 Subaru Forester (SF5, SG5, SG9 chassis) models including Base, L, S, X, XS, and XT trims.

The Cusco Rear Subframe Brace Lower Bar is designed to significantly increase the structural rigidity of your vehicle's rear end. By reinforcing the connection between the subframe and the chassis, this brace eliminates unwanted flex during cornering and heavy suspension loading. This keeps your suspension geometry consistent, providing more predictable handling and improved rear-wheel traction.

Manufactured from high-strength steel and finished in Cusco's signature blue coating, this bar is built to withstand the rigors of performance driving while resisting corrosion. It is engineered for a precise, direct bolt-on fit using existing factory mounting points, requiring no specialized tools for installation.

• Manufacturer Part Number: 676 487 A
• Location: Rear Lower Subframe
• Material: High-strength steel construction
• Finish: Corrosion-resistant Cusco Blue
• Design: Rigid hollow-shaft or solid-bar construction (model specific)
• Installation: Direct bolt-on; uses factory hardware/mounting points

Fits 1997-2007 Subaru Impreza models, including WRX, STI, RS, L, and Outback Sport (GC8, GDA, and GDB chassis). This Cusco Rear Subframe Brace Lower Bar is designed to bridge the vehicle's subframe to enhance chassis rigidity. By minimizing the flex between suspension mounting points during hard cornering, this brace helps maintain consistent alignment geometry for improved rear-end stability and more predictable handling.

• Direct bolt-on application for GC8, GDA, and GDB chassis
• Reduces subframe movement and chassis distortion under load
• Constructed for high rigidity and durability
• Installs onto factory mounting points for a secure fit
• Manufacturer Part Number: 673 487 A

Fits 2006-2007 Subaru Impreza WRX and STI (GDB Applied F).

The Cusco Oil Catch Tank (MPN: 673 009 A) is designed to protect your engine by capturing oil vapor and moisture from the blow-by gases before they re-enter the intake system. This process prevents carbon buildup on the intake valves and manifold, ensuring a cleaner air-fuel mixture and more consistent performance for your turbocharged Subaru.

• Prevents oil sludge and carbon deposits in the intake tract
• Maintains intake air quality and helps prevent octane loss from blow-by
• 0.6L fluid capacity tank designed for the GDB chassis
• Specific fitment for Applied F models (2006-2007)
• Manufacturer Part Number: 673 009 A

Vehicle Fitment:

• 2006-2007 Subaru Impreza WRX (Base, Limited, TR)
• 2006-2007 Subaru Impreza WRX STI (Base, Limited)

Fits 2002-2007 Subaru Impreza WRX and WRX STI (GDA/GDB chassis).

The Cusco Power Brace Rear End of Trunk is engineered to increase chassis rigidity by reinforcing the structural integrity of the rear unibody. By connecting critical stress points, this brace minimizes body flex during high-load cornering and aggressive driving maneuvers, allowing the suspension to maintain more consistent geometry for improved handling and predictable rear-end response.

• Increases chassis stiffness to reduce unibody distortion
• Enhances steering response and overall vehicle stability
• High-strength steel construction for maximum durability
• Signature Cusco Blue powder coat finish for corrosion resistance
• Direct bolt-on installation to existing mounting points
• Manufacturer Part Number: 672 492 RTLHD

Fits 2001-2007 Subaru Impreza, including WRX and WRX STI (2.5L / 2.0L).

The Cusco Power Brace Rear UnderSide is engineered to increase the structural integrity of the GDA and GDB chassis. By reinforcing the rear floor area, this brace significantly reduces chassis distortion under heavy cornering loads. This stabilization allows the suspension to work more effectively, maintaining consistent geometry for sharper, more predictable handling during spirited driving or track sessions.

• Manufactured from high-strength steel for maximum rigidity
• Signature Cusco Blue powder-coated finish for lasting corrosion resistance
• Precision-engineered for a direct bolt-on fit to factory mounting points
• Reduces chassis flex to improve steering response and rear-end stability
• Manufacturer Part Number: 672 492 R

Strengthen the chassis and improve steering response on your Subaru Impreza with the Cusco Power Brace Front Member. This brace is engineered to increase structural rigidity by tying together the front subframe area, minimizing flex during high-load cornering and heavy braking. By reducing chassis deformation, the suspension geometry remains consistent, providing a more predictable and direct driving experience.

Fabricated from high-strength steel and finished in Cusco's signature blue powder coat, this brace is built to withstand the rigors of performance driving. Please note this specific version is designed exclusively for Left Hand Drive (LHD) models and requires the removal of the factory bumper beam for installation.

• Specifically designed for Subaru Impreza GDA and GDB chassis
• Minimizes front-end structural flex for improved handling stability
• High-strength steel construction for maximum durability
• Signature Cusco blue finish for corrosion resistance
• LHD (Left Hand Drive) fitment only
• Incompatible with factory bumper beam
• Manufacturer Part Number: 672 492 FMLHD

Fits 2002-2007 Subaru Impreza models, including WRX, WRX STI, 2.5i, RS, TS, and Outback Sport.

The Cusco Power Brace UnderSide Center is engineered to enhance chassis rigidity by reinforcing the vehicle's midsection floor. By connecting key structural points, this brace significantly reduces chassis flex and unibody distortion during high-load cornering. This ensures your suspension geometry remains consistent, leading to more precise steering response and improved overall stability.

• Manufacturer Part Number: 672 492 C
• Compatibility: Specifically designed to work in conjunction with the Cusco Type 2 Lower Arm Bar
• Chassis Support: Fits GC8, GDA, and GDB chassis platforms
• Construction: High-strength steel components for maximum structural integrity
• Finish: Signature Cusco Blue powder coat for corrosion resistance and durability
• Installation: Direct bolt-on design using factory mounting points

Fits select 2002-2007 Subaru Impreza WRX and WRX STi models. These Cusco diffuser brackets are designed to facilitate the installation of the OEM 2006 Subaru WRX STi rear diffuser onto earlier GD-chassis vehicles. By utilizing these precise mounting points, you can upgrade your vehicle's underbody aerodynamics and aesthetic without custom fabrication.

Please note: This kit is intended for the installation of the factory 2006 STi rear diffuser and must be used in conjunction with Cusco part number 673 487 A for a complete installation.

• Manufacturer Part Number: 672 487 S
• Enables installation of 2006 OEM STi rear diffuser
• Durable construction for secure component mounting
• Specific to Subaru Impreza GD-chassis applications
• Must be used with Cusco subframe bar (673 487 A)

Fits Subaru Impreza GDB, GGB, GRB, and GRF and Subaru Legacy BL and BP models equipped with 6-speed manual transmissions.

The Cusco Stainless Steel Braided Clutch Line is a direct-fit performance upgrade designed to replace the soft, factory rubber clutch hose. Under high temperatures or heavy-duty use, standard rubber lines can expand, leading to a spongy pedal feel and inconsistent engagement points. This Cusco line utilizes a high-pressure stainless steel braid to eliminate hose expansion, ensuring a firmer, more communicative pedal and precise clutch modulation.

• Eliminates hose expansion for consistent clutch engagement
• Improves pedal feel and response during performance driving
• Durable stainless steel braided construction
• Direct replacement for the factory clutch hose
• Specifically engineered for Subaru 6-speed manual gearboxes
• Manufacturer Part Number: 672 022 CL

Fits select 2002-2005 Subaru Impreza WRX and WRX STI models.

The Cusco Round Type Oil Catch Can (Part # 672 009 AN) is an essential upgrade for turbocharged engines, specifically engineered for the GDB Applied C-E chassis. In factory configurations, oil vapor and blow-by gasses are often recirculated back into the intake manifold, leading to carbon buildup on valves and contaminated intake tracks. This 0.3L capacity reservoir captures those impurities before they enter the system, ensuring your intake remains clean and your air-fuel mixture stays consistent.

• Prevents oil and moisture buildup in the intake manifold and intercooler
• Specifically designed for Subaru Impreza GDB Applied C-E chassis
• Polished round body design with a 0.3L capacity
• Maintains engine performance and reduces the risk of pre-ignition
• Manufacturer Part Number: 672 009 AN

Fits 2004-2007 Subaru Impreza WRX STI and WRX STI Limited.

The Cusco 22mm rear sway bar is engineered to reduce body roll and improve the cornering stability of the GD-chassis Impreza WRX STI. By increasing the roll stiffness of the rear suspension, this stabilizer bar provides more predictable handling and helps maintain a larger tire contact patch during aggressive driving. This upgrade is a direct replacement for the factory unit, designed to bolt into existing mounting points to enhance chassis response without compromising street drivability.

• Bar Diameter: 22mm
• Position: Rear
• Chassis Compatibility: GDB
• Finish: Signature Cusco Blue
• Manufacturer Part Number: 669 311 BJ22

Fits select 2001-2007 Subaru Impreza, WRX, and STI models (Left-Hand Drive).

The Cusco Type OS (Oval Shaft) Front Strut Tower Bar is designed to increase chassis rigidity by connecting the front strut towers. This reinforcement reduces chassis flex during aggressive cornering, allowing the suspension to maintain its geometry for sharper steering response and improved tire contact. This specific 667 540 ALHD variant is engineered specifically for Left-Hand Drive (LHD) chassis configurations.

The bar features a lightweight, high-rigidity oval-section aluminum shaft with a polished finish, paired with high-strength steel end plates finished in Cusco's signature blue powder coat. For 2006-2007 models, please note that minor modification to the A/C hose is required for proper clearance.

• Shaft Design: Type OS (Oval Section) Aluminum
• Bracket Material: High-strength steel end plates
• Finish: Polished aluminum bar with blue brackets
• Compatibility: Left-Hand Drive (LHD) only
• Note: 2006-2007 models require AC hose modification
• Manufacturer Part Number: 667 540 ALHD

Fits select 2002-2012 Subaru Impreza, Legacy, and Forester models. This pair of Cusco Front Sway Bar Links is engineered to replace worn or flexible factory end links, restoring suspension response and improving handling precision. By utilizing high-quality materials and durable bushings, these links ensure that your sway bar transfers energy efficiently without the deflection common in aged OEM components.

As a direct-fit replacement, these links are designed to maintain proper suspension geometry under load. They are essential for enthusiasts seeking to maximize the effectiveness of their anti-roll system, whether for street performance or track use. The GDA-GRB Impreza and BL-BP Legacy chassis benefit significantly from the increased rigidity and reliable connection provided by Cusco hardware.

• Manufacturer Part Number: 667 318 A
• Position: Front
• Quantity: Pair (Set of 2)
• Direct replacement for factory mounting points
• Reduces suspension deflection for better cornering stability
• Constructed for durability under high-stress performance driving

Fits 2002-2007 Subaru Impreza WRX and STI (GDA/GDB) turbo models.

The Cusco 22mm Front Sway Bar is a vital suspension upgrade for GDA and GDB chassis owners looking to minimize body roll and improve chassis balance. By increasing the torsional rigidity of the front suspension, this stabilizer bar maintains a more consistent tire contact patch during aggressive cornering, leading to sharper turn-in and flatter handling without sacrificing daily drivability.

Constructed to exacting standards, this bar replaces the smaller OE unit and is finished in signature Cusco Blue. It is designed specifically for turbo-equipped models and installs into factory mounting locations for a precise fit.

• Diameter: 22mm
• Position: Front
• Increases roll stiffness and reduces body lean
• Improves steering response and high-speed stability
• Includes high-performance bushings
• Compatible with GDA and GDB turbo chassis
• Manufacturer Part Number: 667 311 A22

Fits select 2001-2007 Subaru Impreza models (WRX, WRX STI, RS, TS, L, 2.5i, and Outback Sport).

The Cusco Radiator Cooling Plate is an essential aerodynamic upgrade designed to improve thermal efficiency. By sealing the gap between the top of the radiator and the upper radiator support, this plate prevents pressurized air from escaping over the core. Instead, it forces incoming air through the radiator fins, increasing the heat exchange rate and helping to maintain lower coolant temperatures during spirited driving or track sessions.

• Manufactured from lightweight aluminum for durability and heat resistance
• Finished in Cusco's signature blue coating for a distinct engine bay aesthetic
• Direct bolt-on installation using factory mounting points
• Helps prevent engine overheating by optimizing airflow through the cooling system
• Manufacturer Part Number: 667 003 AL

Fits 2002-2007 Subaru Impreza models, including WRX, STI, RS, TS, 2.5i, and Outback Sport.

The Cusco Brake Cylinder Stopper (also known as a Master Cylinder Brace) is a bolt-on performance upgrade designed to eliminate the firewall flex that occurs during heavy braking. In the 2002-2007 Impreza chassis, the sheet metal of the firewall can deflect under the pressure of the brake master cylinder, resulting in a spongy or mushy pedal feel. By providing a rigid stop against the end of the master cylinder, this brace ensures that all your foot's effort is translated into hydraulic pressure rather than mechanical distortion.

Crafted for USDM left-hand drive (LHD) models, this component significantly sharpens brake pedal response and improves modulation for more consistent performance on the street or track. The unit features Cusco's signature blue finish and is engineered to mount securely to existing factory points without the need for custom fabrication.

• Eliminates master cylinder movement by reinforcing the firewall
• Provides a firmer, more direct brake pedal feel
• Direct bolt-on installation using factory mounting points
• Durable steel construction with signature Cusco blue powder coat
• Designed specifically for USDM GDA, GDB, and GGC chassis (LHD)
• Manufacturer Part Number: 666 561 ALHD

Fits 2002-2007 Subaru Impreza models, including WRX, STI, RS, TS, and Outback Sport.

The Cusco Type OS Rear Strut Tower Bar is engineered to bridge the rear strut towers of the GDA chassis, significantly reducing structural flex during cornering. By reinforcing the vehicle's frame, this bar helps maintain proper suspension geometry, resulting in more precise handling and improved rear-end stability for both street and track applications.

• Series: Type OS (Oval Shaft)
• Placement: Rear
• MPN: 666 541 A
• Performance: Minimizes chassis distortion and improves steering response
• Compatibility: Designed specifically for Subaru Impreza (GDA) strut tower mounting points