Fits 2000-2009 Honda S2000 Base and CR models (AP1 & AP2 chassis).

The Cusco Type OS (Oval Shaft) Flat Front Strut Tower Bar is engineered to bridge the gap between the shock towers, significantly reducing chassis flex during high-load cornering. By stiffening the front end, this brace maintains more consistent suspension geometry and improves steering response. The "Flat" type variation features a low-profile aluminum shaft design specifically optimized for engine bay clearance in the S2000.

• High-stiffness oval-section aluminum shaft with a polished finish
• Steel end plate brackets finished in signature Cusco Blue
• Direct bolt-on installation to factory mounting points
• Low-profile Flat-type design for maximum hood and engine component clearance
• Manufacturer Part Number: 381 540 A

Fits 2000-2003 Honda S2000 Base models.

The Cusco 4-point roll cage is engineered to increase chassis rigidity and improve occupant safety for the AP1 Honda S2000. This unit is constructed from high-tensile Chromoly steel, providing a significant weight advantage over standard steel cages without sacrificing structural integrity. The integrated harness bar allows for the correct installation and positioning of racing harness shoulder straps, making this an ideal solution for track-day enthusiasts and competitive drivers.

• Material: Lightweight, high-strength Chromoly steel construction
• Configuration: 4-point roll cage with integrated harness bar
• Performance: Enhances chassis stiffness to improve suspension response and handling
• Compatibility: Specifically designed for 2000-2003 models; does not fit 2006 and newer vehicles
• Manufacturer Part Number: 381 261 CM

Fits 2000-2003 Honda S2000 Base.

The Cusco ALC OS Front Strut Tower Bar is designed to bridge the shock towers, significantly reducing chassis flex during high-load cornering. By reinforcing the front suspension geometry, this brace improves steering precision and maintains consistent tire contact patches for better handling on the street or track.

The ALC OS series features a rigid oval shaft construction with a carbon fiber-look finish, combining structural performance with a high-end engine bay aesthetic. The end plates are finished in Cusco's signature blue and are designed to bolt directly to the factory mounting points without modification.

• Series: ALC OS (Oval Shaft)
• Position: Front
• Material: Aluminum shaft with carbon-look finish
• Manufacturer Part Number: 380 535 A
• Reduces chassis deflection for improved steering response
• Easy bolt-on installation to factory strut tower locations

Fits 2000-2009 Honda S2000 Base and CR (AP1 / AP2).

The Cusco Type II Front Lower Arm Bar is a multi-point chassis brace designed to significantly reduce front-end flex and improve steering precision. By connecting multiple points of the lower suspension mounts, this bar prevents alignment changes under heavy cornering loads, ensuring your tires maintain a consistent contact patch for maximum grip.

• Engineered for high-tension rigidity using high-strength steel construction
• Finished in signature Cusco Blue for lasting corrosion resistance
• Multi-point design offers superior structural reinforcement over standard two-point braces
• Direct bolt-on installation using existing factory mounting points
• Manufacturer Part Number: 380 477 A

Fits 2000-2009 Honda S2000 (AP1 / AP2).

The Cusco Lower Arm Bar Type I is engineered to enhance chassis rigidity by connecting the lower suspension mounting points. By effectively reducing chassis flex during high-load cornering and hard braking, this brace ensures that suspension geometry remains consistent, leading to more predictable handling and improved steering feedback.

• Manufacturer Part Number: 380 476 ALHD
• Position: Rear
• Type: Type I (2-point lower brace)
• Material: High-tension lightweight tubular aluminum construction
• Finish: Signature Cusco Blue
• Installation: Direct bolt-on to factory mounting points; no drilling required

Fits 2000-2009 Honda S2000 Base and CR models (AP1/AP2).

The Cusco 32mm Front Sway Bar is designed to significantly reduce body roll and improve the cornering stability of the S2000 chassis. By increasing the torsional rigidity of the front suspension, this bar provides sharper turn-in and more predictable handling during high-performance driving. It is a direct bolt-on upgrade for the factory sway bar, utilizing existing mounting points for a precise fit.

• Diameter: 32mm
• Position: Front
• Material: High-strength steel construction
• Finish: Signature Cusco Blue
• Includes: Sway bar and necessary hardware for installation
• Manufacturer Part Number: 380 311 A32

Vehicle Fitment

Fits 2000-2009 Honda S2000 Base and CR models (AP1/AP2).

The Cusco Front Subframe Lower Bar is engineered to increase chassis rigidity by reinforcing the vehicle's subframe. By connecting key structural points, this bar minimizes subframe flex during aggressive cornering and high-load driving, ensuring the suspension geometry remains consistent for more predictable handling and improved steering response.

• Direct bolt-on installation to factory mounting points for a precise fit
• Reduces chassis distortion to maintain alignment settings under stress
• Enhances front-end stability and steering feedback
• Finished in signature Cusco blue for durability and corrosion resistance
• Manufacturer Part Number: 380 240 A

Fits 2000-2003 Honda S2000 Base.

The Cusco Oil Catch Tank for the AP1 Honda S2000 (MPN: 380 009 A) is an essential component for maintaining long-term engine health and performance. During high-RPM operation, blow-by gases containing oil vapor are typically vented from the crankcase back into the intake. This can lead to heavy carbon deposits on intake valves and a reduction in the effective octane of your fuel mixture. This tank intercepts those vapors, collecting the oil and condensation so only clean air returns to the intake tract.

• Prevents oil and sludge buildup in the intake manifold and on intake valves.
• Helps maintain consistent combustion and prevents detonation by removing oil from the air-fuel charge.
• Polished finish provides a professional, high-performance look in the S2000 engine bay.
• Includes vehicle-specific mounting hardware and hoses for a streamlined installation.
• Durable aluminum construction designed to withstand high engine bay temperatures.
• Manufacturer Part Number: 380 009 A.

Fits 2000-2009 Honda S2000 (Base / CR) models with AP1 and AP2 chassis. This Cusco Radiator Cooling Plate is designed to improve thermal management by preventing air from escaping over the top of the radiator. By sealing the gap between the radiator and the upper core support, it forces high-pressure air through the cooling fins rather than around them, increasing cooling efficiency during spirited driving or track sessions.

• Manufacturer Part Number: 380 003 AL
• Lightweight aluminum construction for durability and weight savings
• Signature Cusco Blue anodized finish for corrosion resistance and engine bay aesthetics
• Direct bolt-on installation utilizing factory mounting points
• Helps maintain stable operating temperatures by optimizing airflow

Fits 1997-2001 Honda CR-V (EX, LX, and SE trims).

The Cusco Type OS Front Strut Tower Bar is a precision-engineered chassis reinforcement designed to reduce front-end flex and improve steering response. By connecting the upper strut towers, this bar helps maintain consistent suspension geometry during heavy cornering, ensuring the tires stay planted and the chassis remains rigid.

This Strut Tower Bar features an oval-section aluminum shaft for high torsional rigidity without adding significant weight. The brackets are constructed from high-strength steel and finished in signature Cusco Blue for a durable, professional look in the engine bay.

• Series: Type OS (Oval Shaft)
• Location: Front Upper
• Material: Polished aluminum shaft with steel end-plate brackets
• Installation: Direct bolt-on to factory mounting points; no welding required
• Manufacturer Part Number: 377 540 A

Fits Honda CR-V.

Strengthen your vehicle's chassis and sharpen steering response with the Cusco Type AS Front Strut Tower Bar (377 510 A). This performance brace is engineered to reduce chassis flex, providing a more stable and predictable feel during cornering and across uneven road surfaces by reinforcing the front suspension mounting points.

The Type AS (Aluminum Shaft) series utilizes a 20mm round aluminum shaft, offering high rigidity without adding significant weight to the front end. By tying the strut towers together, it prevents the towers from leaning under load, helping to maintain consistent alignment geometry for improved turn-in precision.

• Construction: Lightweight 20mm round aluminum tubing for structural reinforcement.
• Finish: Polished aluminum shaft with signature Cusco blue powder-coated steel brackets.
• Design: Type AS (Aluminum Shaft) series for a classic look and effective stiffness.
• Installation: Direct bolt-on design for a straightforward fit to factory mounting points.
• Manufacturer Part Number: 377 510 A

Fits 1997-2001 Honda CR-V (EX, LX, SE).

The Cusco Lower Arm Bar Type I is a structural reinforcement component designed to improve the chassis rigidity of your vehicle. By connecting the lower suspension arm mounting points, this bar prevents chassis flex and distortion under heavy cornering or uneven road surfaces. This stabilization helps maintain consistent suspension alignment, resulting in sharper steering response and improved handling predictability.

• Manufacturer Part Number: 377 475 A
• Position: Front
• Series: Lower Arm Bar Type I
• Fitment: 1997-2001 Honda CR-V (RD1)
• High-strength construction designed for a precise fit on factory mounting points
• Reduces alignment changes during aggressive driving

Fits 2007-2008 Honda Fit Base and Sport models (GD3 chassis).

The Cusco Type OS (Oval Shaft) Front Strut Tower Bar is engineered to reduce chassis flex by tying the front strut towers together. This added rigidity helps maintain consistent suspension geometry under heavy cornering loads, resulting in sharper turn-in response and more predictable steering feedback. As a bolt-on performance upgrade, it addresses the structural deflection common in unibody vehicles during spirited driving.

• Manufacturer Part Number: 368 540 A
• Design: Type OS oval-section aluminum bar for high torsional rigidity and hood clearance
• Brackets: Steel end plates finished in Cusco’s signature blue powder coat
• Fitment: Direct bolt-on to factory mounting points; no drilling required
• Application: Specifically engineered for the GD3 Honda Fit chassis

Fits 2004-2005 Acura TSX Base models.

The Cusco Type OS (Oval Section) Front Strut Tower Bar is engineered to increase chassis rigidity by connecting the front shock towers. This reinforcement reduces structural flex during hard cornering, ensuring the suspension geometry remains consistent for improved steering response and front-end stability on the CL9 chassis.

• High-strength oval aluminum shaft with a polished finish for rigidity and engine bay aesthetics
• Steel end plate brackets finished in Cusco signature blue
• Direct bolt-on installation to factory mounting points
• Designed to minimize tower deflection and improve handling precision
• Manufacturer Part Number: 344 540 A

Fits 2002-2006 Acura RSX Base and Type-S models.

Improve your vehicle's handling and steering response by reinforcing the front chassis with the Cusco Type OS Strut Tower Bar. This 2-point brace connects the tops of your front strut towers, significantly reducing chassis flex during high-load cornering and maintaining consistent suspension geometry for more predictable turn-in and tracking.

The Type OS (Oval Shaft) series is Cusco's most popular strut bar design, featuring a lightweight aluminum construction with a high-rigidity oval cross-section. This design provides maximum strength while maintaining low-profile clearance in the engine bay. The bar is anchored by durable steel end plate brackets finished in Cusco's signature blue, ensuring a precise fit on the DC5 chassis using factory mounting points.

• Manufacturer Part Number: 334 540 A
• Position: Front, 2-Point
• Shaft Design: Type OS (Oval Shaft)
• Material: Aluminum Bar with Steel End Brackets
• Direct bolt-on installation with no drilling required
• Fits both Base and Type-S trim levels

Fits 1999-2003 Acura TL Base and Type-S.

The Cusco Type OS (Oval Shaft) Front Strut Tower Bar is engineered to reduce chassis flex by tying the front strut towers together. By reinforcing the vehicle's structural integrity at the suspension mounting points, this bar helps maintain consistent alignment geometry during hard cornering and improves steering feedback and precision.

• High-vacuum pressurized aluminum oval shaft for a high strength-to-weight ratio
• Precision-engineered steel end plates finished in signature Cusco Blue powder coat
• Designed to clear factory engine components and provide a direct bolt-on fitment
• Reduces lateral body deformation to improve handling predictability
• Manufacturer Part Number: 332 540 A

Fits 1999-2003 Acura TL Base and Type-S (UA5 chassis).

Improve the structural integrity of your vehicle's front suspension with the Cusco Version I Front Lower Arm Bar. This brace is specifically engineered to connect the lower arm mounting points at the subframe, significantly reducing chassis flex during aggressive cornering and high-load driving. By preventing the lower arms from pulling apart under stress, this bar maintains precise alignment geometry and ensures more consistent steering feedback.

• Enhances chassis rigidity for sharper handling and steering response
• Minimizes alignment variance by bracing lower suspension mounting points
• Designed for a direct bolt-on fit using existing factory hardware points
• Durable construction finished in signature Cusco blue
• Manufacturer Part Number: 332 475 A

Fits 2006-2011 Honda Civic Si and MUGEN Si models.

The Cusco Type OS (Oval Shaft) rear strut tower bar is engineered to increase chassis rigidity by connecting the rear strut towers, reducing body flex during high-load cornering. This specific model is designed as a direct replacement for the factory rear bar, providing a significant upgrade in structural stiffness and steering response over the OEM component.

Construction features a high-rigidity oval-section aluminum shaft with a polished finish. The end plate brackets are finished in Cusco’s signature metallic blue for durability and corrosion resistance. This bar is a bolt-on solution that utilizes factory mounting points for a precise fit.

• Manufacturer Part Number: 329 541 A
• Series: Type OS (Oval Shaft)
• Location: Rear
• Material: Aluminum shaft with steel end brackets
• Replaces factory OEM rear bar
• Direct bolt-on installation

Fits 2006-2011 Honda Civic Si and 2008 Honda Civic MUGEN Si.

The Cusco Type OS (Oval Section) Front Strut Tower Bar is designed to significantly reduce chassis flex by tying the shock towers together. This reinforcement stabilizes the suspension geometry during hard cornering, resulting in more precise steering response and improved front-end feedback for your Civic Si.

Engineered for durability and weight savings, the bar features a high-strength aluminum oval shaft with a polished finish, complemented by Cusco's signature blue steel end plates. This combination provides a rigid mounting point to the factory towers while enhancing the aesthetics of the engine bay. Note: Installation of this specific bar requires the relocation of the factory clutch reservoir for proper clearance.

• Reduces strut tower flex to maintain optimal suspension geometry
• Type OS high-strength aluminum oval shaft with polished finish
• Signature Cusco blue steel end plates for maximum rigidity
• Installation requires moving the factory clutch reservoir
• Manufacturer Part Number: 329 540 A

Fits 2006-2011 Honda Civic Si and 2008 Honda Civic MUGEN Si.

The Cusco Power Brace Rear Bulk Arm (MPN 329 492 RB) is designed to increase the structural rigidity of your Honda Civic chassis. By tying key structural points together, this brace significantly reduces body flex during aggressive cornering and high-load driving. This ensures that the suspension geometry remains consistent, providing sharper steering response and improved overall handling predictability.

• Replaces or reinforces the rear bulkhead to minimize chassis distortion
• High-strength steel construction for maximum durability and rigidity
• Finished in signature Cusco Blue powder coating
• Designed as a bolt-on reinforcement for the 8th Gen Civic Si chassis
• Manufacturer Part Number: 329 492 RB

Note: Installation of this rear power brace requires trimming of the factory interior carpet and panels for proper fitment.

Fits 2002-2005 Honda Civic Si (EP3).

The Cusco Type OS Front Strut Tower Bar is engineered to increase chassis rigidity by bracing the front suspension towers together. This reinforcement reduces chassis flex under heavy cornering loads, maintaining consistent suspension geometry and providing sharper steering response and improved feedback for the driver.

• High-tension extruded aluminum oval shaft with a polished finish for strength and weight savings
• Steel end plates finished in signature Cusco Blue for durability and corrosion resistance
• Direct bolt-on design for a precise fit with the factory mounting points
• Specifically designed for the EP3 Honda Civic chassis
• Manufacturer Part Number: 327 540 A

Fits 2002-2006 Acura RSX (Base/Type-S) and 2002-2005 Honda Civic Si.

The Cusco Type OS Rear Strut Tower Bar is designed to eliminate chassis flex by tying the rear shock towers together, ensuring your suspension geometry remains consistent under heavy cornering loads. This increased rigidity improves rear-end stability and provides more predictable handling during spirited driving or track use. As part of the classic Type OS line, this bar features a lightweight, hollow oval-section aluminum shaft with a high-polish finish.

• Increases chassis rigidity for improved steering response and stability
• Features a high-strength oval aluminum shaft for maximum stiffness with minimal weight
• Steel end plate brackets finished in signature Cusco Blue
• Direct bolt-on installation to factory mounting points; no welding required
• Genuine Cusco Japan product: 322 541 A

Fits 2002-2006 Acura RSX Base and Type-S (DC5 chassis).

The Cusco Pillar Side Bar is engineered to reinforce the structural integrity of the unibody by strengthening the large door opening area. This bar connects the floor to the B-pillar, significantly reducing chassis flex during high-G cornering and spirited driving. By minimizing body distortion, this reinforcement helps maintain consistent suspension geometry and improves steering feedback for more predictable handling.

• Increases chassis rigidity and reduces body flex in the DC5 platform
• Constructed from high-tension steel for maximum durability
• Finished in signature Cusco Blue for corrosion resistance
• Precision-engineered for a direct fit on Acura RSX models
• Essential for track-focused or high-performance street builds
• Manufacturer Part Number: 322 495 A

Fits 2002-2006 Acura RSX Base and Type-S models.

The Cusco 25mm Rear Sway Bar is designed to significantly reduce body roll and improve cornering stability for the DC5 chassis. By increasing the torsional rigidity of the rear suspension, this sway bar helps the Acura RSX maintain a flatter posture during high-speed maneuvers and aggressive cornering, resulting in more predictable handling and improved tire contact patches. This is a crucial upgrade for enthusiasts looking to sharpen steering response and neutralize understeer without sacrificing ride quality.

• Diameter: 25mm
• Position: Rear
• Material: High-strength steel construction
• Finish: Signature Cusco Blue powder coat for superior corrosion resistance
• Installation: Direct bolt-on to factory mounting points
• Manufacturer Part Number: 322 311 B25

Fits 2002-2006 Acura RSX Base and Type-S models.

The Cusco 25mm Front Sway Bar is designed to significantly reduce body roll and improve the handling characteristics of the DC5 chassis. By increasing the torsional rigidity of the front suspension, this bar keeps the vehicle flatter through corners, resulting in improved tire contact patches and sharper steering response during spirited driving or track sessions.

• Diameter: 25mm
• Position: Front
• Material: High-strength spring steel construction
• Finish: Signature Cusco Blue coating for corrosion resistance
• Part Number: 322 311 A25

This component is engineered as a direct replacement for the factory unit, utilizing original mounting points for a precise fit. It is a critical upgrade for drivers looking to neutralize understeer and enhance the overall stability of their 2002-2006 Acura RSX.

Fits 1992-2000 Honda Civic and 1994-2001 Acura Integra (EG, EK, DC chassis).

The Cusco Lower Arm Bar Type I is an essential chassis reinforcement designed to increase steering response and handling precision. By connecting the lower suspension arm mounting points at the front subframe, this brace significantly reduces chassis flex and prevents alignment changes under heavy cornering or high-load driving conditions.

Constructed for high strength and a perfect fit, this Type I bar is a direct bolt-on upgrade that utilizes factory mounting points. It provides a noticeable improvement in front-end rigidity, ensuring that your suspension geometry remains consistent for more predictable turn-in and improved traction.

• Connects lower control arm mounting points to minimize subframe distortion
• Improves steering feel, feedback, and directional stability
• High-rigidity construction with a signature Cusco Blue finish
• Low-profile design maintains maximum ground clearance
• Simple bolt-on installation with no welding required
• Manufacturer Part Number: 320 475 A

Fits 1996-2000 Honda Civic CX and DX.

The Cusco Pillar Side Bar is designed to enhance chassis rigidity in the Honda Civic EK chassis by bracing the B-pillar against the floor/sill section. This reinforcement reduces body flex and distortion during aggressive cornering, helping to maintain stable suspension geometry and improve steering response. Engineered for a precise fit, this bar connects critical points of the vehicle's unibody to provide a more connected driving experience.

• Reduces chassis flex and improves overall structural integrity
• Direct bolt-on application for specified Honda Civic models
• Classic Cusco finish for durability and corrosion resistance
• Manufacturer Part Number: 317 495 A

Vehicle Fitment

Fits select 1992-2001 Honda Civic and Acura Integra models.

The Cusco Type OS (Oval Shaft) rear strut tower bar is a fundamental chassis upgrade designed to reduce body flex and improve suspension response. By connecting the rear strut towers, this bar maintains consistent suspension geometry during high-load cornering, providing more predictable handling and improved steering feedback for both street and track applications.

Construction features a lightweight, high-rigidity aluminum shaft with a polished finish, paired with durable steel end brackets in the iconic Cusco blue finish. This bar is a direct bolt-on component that utilizes factory mounting locations for a straightforward installation without the need for custom fabrication.

• Lightweight oval aluminum shaft for maximum rigidity and engine bay clearance
• Steel end plate brackets finished in signature Cusco blue
• Reduces chassis flex to improve handling precision
• Direct bolt-on fitment using factory mounting points
• Manufacturer Part Number: 315 541 A

Fits 1992-2001 Honda Civic and Acura Integra (all trims including Si and Type R).

The Cusco Type OS front strut tower bar is engineered to increase chassis rigidity by bracing the vehicle's shock towers. By connecting the suspension mounting points, this bar reduces chassis flex during hard cornering, ensuring the suspension geometry remains consistent for more predictable handling and sharpened steering response. The Type OS features a lightweight, high-rigidity aluminum oval shaft with a polished finish, designed to provide maximum structural support while maintaining engine bay clearance.

• Reduces strut tower flex under high-load cornering and spirited driving
• Improves steering precision and front-end stability
• Lightweight aluminum oval shaft construction with a polished finish
• Durable steel end plates finished in signature Cusco Blue
• Direct bolt-on installation to factory mounting points; no drilling required
• Manufacturer Part Number: 315 540 A

Fits select 1990-1993 Honda Civic and Acura Integra models (Non-ABS only).

The Cusco Type ST Front Strut Tower Bar is engineered to increase chassis rigidity by bracing the shock towers together. This reduces strut tower flex during aggressive cornering, helping to maintain consistent suspension geometry and improving steering precision. Built specifically for the EF8/EF9 and DA6/DA8 chassis, this bar is a foundational upgrade for track-day stability and street performance.

• Series: Type ST (Steel Construction)
• Position: Front
• Bar Material: High-strength tubular steel with a classic finish
• Bracket Finish: Cusco Blue signature coating
• Fitment Note: Compatible with non-ABS models only
• Part Number: 308 510 A

Each kit includes the strut bar, mounting brackets, and all necessary hardware for a straightforward installation to the factory strut mount locations.