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Cusco Carbon Rear Strut Bar Subaru WRX STI 02-07 - 666 551 A

Cusco 666 551 A Strut Brace: Performance You Can Trust

If you're looking to boost your vehicle's handling and stability, the Cusco 666 551 A Strut Brace is an excellent choice. Crafted with precision and designed for performance, this product is tailored specifically for 2002 and newer WRX and STI models. Let's take a closer look at what makes this strut brace a must-have for your ride.

Key Features

  • Superior Construction: Made from high-quality carbon fiber, the rear strut brace is both lightweight and incredibly strong, ensuring durability without adding unnecessary weight to your vehicle.
  • Easy Installation: Designed for a straightforward installation process, this brace can be bolted right in, making it accessible even for those new to automotive upgrades.
  • Enhanced Stability: The rear triangle brace, crafted from robust aluminum, adds an extra level of stiffness. This piece connects across the strut tops and down to the trunk brace, significantly improving your vehicle's structural integrity.

Benefits of Upgrading to the Cusco 666 551 A

Upgrading to the Cusco 666 551 A strut brace can drastically improve your vehicle's handling characteristics over factory components. By reducing chassis flex, this brace enhances steering response and cornering stability, allowing for a more confident driving experience. Whether you're hitting the track or navigating winding roads, this strut brace is engineered to keep your WRX or STI performing at its best.

Specifications

  • Model: Cusco 666 551 A
  • Material: Carbon Fiber (Rear), Aluminum (Triangle Brace)
  • Compatibility: Fits all 2002 and newer WRX and STI vehicles
  • Installation: Bolt-on design for easy setup

Customer Reviews

Many customers have shared their experiences with the Cusco 666 551 A, highlighting significant improvements in handling. One customer noted, "After installing the strut brace, I immediately noticed a tighter feel in corners. The car feels more planted and responsive, especially during aggressive driving." Another user mentioned, "The installation was a breeze, and the quality is top-notch. I love how it looks under the hood, too!"

Fitment Information

This strut brace is specifically designed for the following vehicles:

  • 2002 WRX
  • 2002 STI
  • All subsequent WRX and STI models

Upgrade your ride with the Cusco 666 551 A Strut Brace and experience the difference in performance and handling. Your vehicle deserves the best, and this strut brace delivers just that.

Proposition 65

⚠ WARNING: Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov

Cusco Banner

Who is Cusco?

Cusco is an independent aftermarket company in Japan specializing in manufacturing high-performance parts such as drivetrain components, suspension, chassis bars, including strut towers, engine parts, roll cages, and more. 

They are widely known in the automotive industry and have participated in various race series within and outside Japan. 

Today, they have become the go-to brand of aftermarket tuners all around the globe.

Racing Background

Cusco has created many racing vehicles for different racing disciplines, such as rallying, track racing, autocross, time attack events, and gymkhana. 

With a history of producing the best race cars in its class, they have used that knowledge and have translated it to all their products creating the best performing and safest parts out there.

Improves Driving Experience

Cusco's goal is to improve each car's potential to provide the driver with the best experience possible. It helps the car provide better feedback to the driver, which helps the driver create better judgment and confidence to trust their vehicle. 

Inhouse Manufacturing Process

Cusco maintains its high-quality standard by doing their parts inhouse. From design to manufacturing, they have created a dedicated facility that would help them ensure that it passes their strict requirements, providing the clients with the best products they deserve. The company is also ISO 9001 certified, meaning all of its processes have passed the standard requirement of the regulatory commission.

Struts and Roll cages

Cusco has been very popular when it comes to chassis stiffeners and roll cages. They create one of the best roll cages that comply with the racing body's standards. Their design helps improve chassis stiffness and rigidity, making it handle better and helps protect the driver in case of an accident. It is intended to save dozens of lives on the race track and in the streets. 

Purchase Cusco Parts at Vivid Racing

Cusco has been supplying parts for almost a decade among thousands of enthusiasts worldwide. With its track record of providing parts that outperform the competition, they are a brand that anyone can count on. Visit Vivid Racing and check out the list of Cusco products specific to your needs.

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Things
Sale price None
Wholesale price $225.50
Shipping Weight: 3.80
Length: 51
Width: 6
Height: 3
Product Added At Friday 22 September, 2006
Product Modified At Wednesday 28 May, 2025
Imported By ETLOverride
Last Edited By kathi@vividracing.com
View In Admin

Emissions Info
Carb Approved -
Carb Number -
Epa Status N/A
Prop65 Unknown
Carb Required -
Vendors
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Vendor Inv Cost Retail Jobber MAP Core Updated
CUSCO USA INC $191.10 $294.00 ? $264.60 ? 2025-05-28 13:34:00


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