Fits 2016 Mazda MX-5 Miata (Club, Grand Touring, and Sport submodels).

The Cusco Type OS Rear Strut Tower Bar is engineered to increase chassis rigidity by bracing the rear suspension towers. By linking the towers together, this bar minimizes chassis flex under heavy cornering loads, helping to maintain consistent suspension geometry for more predictable handling and improved tire contact.

• High-rigidity Type OS (Oval Section) lightweight aluminum shaft with a polished finish
• Precision-engineered steel end plate brackets finished in signature Cusco Blue
• Direct bolt-on installation utilizing factory mounting points
• Maintains rear trunk functionality while improving structural integrity
• Manufacturer Part Number: 429 541 A
• Position: Rear

Fits 2016 Mazda MX-5 Miata Club, Grand Touring, and Sport models (ND5RC chassis).

Reinforce your Roadster's chassis with the Cusco Type OS Front Strut Tower Bar. Designed specifically for the ND5RC chassis, this brace connects the top of the shock towers to significantly reduce chassis flex during hard cornering. By maintaining static suspension geometry under load, it provides more predictable handling, sharper steering response, and improved driver feedback.

• Manufacturer Part Number: 429 540 AT
• Series: Type OS (Oval Shaft)
• Position: Front Upper
• Design: High-rigidity oval-section aluminum bar for maximum clearance and strength
• Installation: Direct bolt-on to factory mounting points; no drilling required

Fits 2006-2015 Mazda MX-5 Miata NCEC models across all trims including Sport, Grand Touring, Club, and Special Edition.

The Cusco Type OS (Oval Shaft) Front Strut Tower Bar is designed to reduce chassis flex and improve steering precision by bracing the front shock towers. Unlike standard two-point braces, this specific unit features a triangulated design that attaches directly to the firewall, providing a significantly more rigid structure to combat front-end deflection during cornering.

• Manufacturer Part Number: 428 540 AT
• Series: Type OS (Oval Shaft)
• Position: Front (Triangulated to Firewall)
• Shaft Material: High-grade aluminum with a polished finish
• Bracket Material: Steel, finished in signature Cusco Blue
• Installation: Bolts to factory mounting points; firewall attachment included for maximum rigidity

Fits 1993-1995 Mazda RX-7 (FD3S) Base, R1, R2, and Touring models.

The Cusco Type OS front strut tower bar is a critical chassis reinforcement for the FD3S RX-7, designed to eliminate suspension tower flex during aggressive cornering. By connecting the upper shock towers, this bar maintains accurate suspension geometry and provides more direct, predictable steering feedback. The "Type OS" designation features a high-rigidity oval-section aluminum shaft with a polished finish, engineered for a high strength-to-weight ratio that clears factory engine components.

• Increases chassis rigidity and reduces structural flex
• High-strength oval aluminum shaft construction
• Steel end plates finished in signature Cusco Blue
• Direct bolt-on installation to factory mounting points
• Manufacturer Part Number: 422 540 A

Fits 1986-1991 Mazda RX-7 (FC3S) including Turbo, GTU, GXL, and Convertible models.

The Cusco Type OS Front Strut Tower Bar is designed to increase chassis rigidity by bridging the front shock towers. This reinforced connection reduces chassis flex during high-load cornering, ensuring the suspension maintains its intended geometry for sharper turn-in and more predictable steering feedback. As a direct bolt-on upgrade, it utilizes factory mounting points for a straightforward installation.

This bar features a lightweight, high-rigidity oval aluminum shaft with a polished finish. The end plates are constructed from durable steel and finished in Cusco's signature blue coating, providing both structural integrity and a refined aesthetic for the engine bay of your FC3S.

• Manufacturer Part Number: 420 540 A
• Series: Type OS (Oval Shaft)
• Position: Front
• Material: Aluminum Shaft with Steel Brackets
• Fitment: 1986-1991 Mazda RX-7 (All Trims)

Fits 2023+ Honda Civic Type-R (FL5).

The Cusco OS-Type Front Strut Tower Brace is a foundational chassis upgrade designed to eliminate front-end flex during aggressive cornering. By bridging the distance between the front strut towers, this brace reinforces the bulkhead and maintains consistent suspension geometry, providing sharper turn-in and more predictable steering feedback on the track or the street.

• Series: OS-Type (Oval Shaft)
• Material: Polished aluminum oval shaft for high rigidity and engine bay clearance
• Brackets: Steel end plates finished in signature Cusco Blue powder coat
• Installation: Direct bolt-on to factory mounting locations with included hardware
• Manufacturer Part Number: 3F7 540 A

This brace is engineered to fit the FL5 chassis specifically, ensuring maximum clearance for factory intake components while significantly stiffening the front subframe assembly for improved handling performance.

Fits 2017 Honda Civic Type-R (FK8).

The Cusco Type OS front strut tower bar is engineered to increase chassis rigidity by bridging the shock towers, effectively reducing structural flex during high-load cornering. By stabilizing the suspension mounting points, this bar helps maintain consistent alignment geometry, resulting in more precise steering feedback and improved front-end grip. It is a functional upgrade for FK8 owners looking to enhance handling characteristics without compromising daily drivability.

• High-rigidity oval section aluminum shaft with a polished finish
• Steel end plate brackets finished in signature Cusco Blue powder coat
• Direct bolt-on design utilizes factory mounting points for easy installation
• Designed specifically for the FK8 chassis to ensure proper clearance
• Manufacturer Part Number: 3C4 540 A

Fits 2016-2024 Honda Civic (FC) models, excluding Type R.

The Cusco Type OS (Oval Shaft) Front Strut Tower Bar is designed to enhance chassis rigidity by bracing the front suspension towers together. This reinforcement reduces chassis flex during hard cornering, ensuring the suspension maintains its intended geometry for more precise steering response and improved tire contact patches. It is an essential upgrade for 10th-generation Civic owners looking to sharpen handling without sacrificing ride quality.

• High-vacuum underside ribbed aluminum oval shaft for maximum rigidity and weight savings
• Steel end plate brackets finished in iconic Cusco Blue powder coat
• Direct bolt-on design utilizes factory mounting points for easy installation
• Designed specifically for the Honda Civic FC chassis
• Manufacturer Part Number: 3C3 540 A

Fits 2015-2020 Honda Fit (GK5) models.

Enhance the handling and chassis rigidity of your GK5 with the Cusco Type-OS Front Strut Tower Bar. By bridging the front strut towers, this bar reduces chassis flex during aggressive cornering and over uneven surfaces. The result is more precise steering feedback and the maintenance of consistent alignment geometry under load.

• Type-OS Construction: Features a high-rigidity oval section aluminum bar for a high strength-to-weight ratio.
• Materials: Polished aluminum shaft with steel end plate brackets finished in signature Cusco Blue.
• Installation: Engineered as a direct bolt-on replacement using factory mounting points; no drilling or cutting required.
• Manufacturer Part Number: 3A2 540 A

Fits the 2009 Honda Fit (GE6, GE7, and GE8 chassis models).

The Cusco Type OS Front Strut Tower Bar is designed to enhance chassis rigidity by bridging the gap between the front strut towers. By minimizing chassis flex during spirited driving and cornering, this bar helps maintain proper suspension geometry, resulting in more predictable handling and sharpened steering response. Engineered specifically for LHD (Left-Hand Drive) configurations, it ensures proper clearance within the engine bay.

• Series: Type OS (Oval Shaft)
• Material: High-vacuum die-cast aluminum oval shaft for maximum structural integrity and weight savings.
• Finish: Polished aluminum shaft paired with signature Cusco metallic blue steel end brackets.
• Installation: Direct bolt-on to factory strut mounting points with no modifications required.
• Function: Reduces tower displacement to improve tire contact patch consistency.
• Manufacturer Part Number: 386 540 ANLHD

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.

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 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 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 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 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 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.

Fits 2009-2013 Infiniti G37 (Base, IPL, Journey, Sport, and X) models.

The Cusco Type OS (Oval Shaft) front strut tower bar is engineered to enhance chassis rigidity by bridging the gap between the front shock towers. By tying these points together, the bar significantly reduces chassis flex during hard cornering, ensuring the suspension maintains its intended geometry for sharper turn-in and improved steering feedback.

• High-rigidity oval section aluminum shaft for a lightweight yet strong construction
• Steel end plates finished in Cusco signature blue for durability and corrosion resistance
• Direct bolt-on installation to factory mounting locations with no drilling required
• Reduces alignment changes under load for more predictable handling
• Manufacturer Part Number: 288 540 A

Fits 1984-1989 Nissan 300ZX Base, Turbo, and 2+2 models.

The Cusco Type OS Rear Strut Tower Bar is designed to eliminate chassis flex at the rear shock towers, a common issue in the Z31 chassis during spirited driving. By tying the towers together, this brace maintains precise suspension geometry and improves rear-end stability under heavy cornering loads.

• Series: Type OS (Oval Shaft)
• Material: High-vacuum extruded aluminum shaft with a ribbed internal construction for maximum rigidity.
• Finish: Polished aluminum center bar with heavy-duty steel end plate brackets finished in Cusco Blue.
• Fitment: Direct bolt-on installation to factory mounting points; designed specifically for the 1984-1989 Z31 300ZX.
• Manufacturer Part Number: 248 541 A

This strut bar is an essential upgrade for owners looking to sharpen steering response and reduce unibody fatigue in their classic Z-car.

Fits 1984-1989 Nissan 300ZX (Z31) Base, Turbo, and 2+2 models.

The Cusco Type OS Front Strut Tower Bar is engineered to reduce chassis flex by reinforcing the connection between the front shock towers. By minimizing tower deflection during cornering, this bar improves steering response and helps maintain consistent suspension geometry under load. The Type OS (Oval Section) design features a high-strength aluminum shaft with a hollow core, offering an ideal balance of weight savings and torsional rigidity.

This reinforcement bar is a direct bolt-on component that utilizes factory mounting points, requiring no drilling or permanent modification. The end plates are constructed from heavy-duty steel and finished in Cusco's signature blue powder coating for long-term durability and a professional engine bay appearance.

• Manufacturer Part Number: 248 540 A
• Shaft Material: Lightweight tubular aluminum with oval cross-section
• Bracket Material: High-strength steel finished in Cusco Blue
• Location: Front Strut Tower
• Design: Type OS (Oval Shaft)
• Installation: Direct bolt-on to OEM mounting points

Fits 1979-1983 Nissan 280ZX Base, GL, 2+2, and Turbo models (S130 chassis).

The Cusco Type AS Rear Strut Tower Bar is engineered to reinforce the rear suspension mounting points on the S130 chassis, significantly reducing the chassis flex that occurs during aggressive cornering. By bridging the strut towers, this bar maintains consistent suspension geometry, providing more predictable handling and improved rear-end stability for both street and track applications.

The Type AS (Aluminum Shaft) features a lightweight, high-strength polished aluminum construction. It is designed as a direct-fit upgrade, bolting into the factory rear strut tower locations without the need for extensive modification. This bar is a functional addition for enthusiasts looking to sharpen the steering response and structural feel of their vintage Datsun/Nissan Z-car.

• Product Line: Type AS (Aluminum Shaft)
• Position: Rear
• Material: Polished Aluminum
• Chassis Compatibility: HS130 / GS130 / S130
• Manufacturer Part Number: 247 511 A

Fits all 1979-1983 Nissan 280ZX models including Base, GL, and Turbo (HS130/GS130 chassis).

The Cusco Type ST front strut tower bar is a fundamental chassis upgrade designed to eliminate strut tower flex during hard cornering. By physically linking the tops of the front shock towers, this bar maintains consistent suspension geometry, providing more predictable handling and sharper steering response for your S130 chassis. Constructed from high-tension steel, the Type ST is built for durability and structural integrity under high-load driving conditions.

• Increased Rigidity: Minimizes chassis twist to keep the tire contact patch optimal during cornering.
• Direct Bolt-On: Engineered to utilize factory mounting points for a straightforward installation with standard hand tools.
• Steel Construction: High-strength steel shaft provides superior stiffness compared to standard aluminum bars.
• Classic Aesthetics: Features the signature Cusco blue powder-coated steel brackets for corrosion resistance and a performance look.

• Manufacturer Part Number: 247 510 A
• Position: Front
• Series: Type ST (Steel)
• Chassis Codes: HS130 / GS130