ST Suspensions Rear Sway Bar

2013–2016 Scion FR-S, Subaru BRZ

51228

Overview:

The ST Suspensions Rear Sway Bar is a precision-engineered suspension upgrade designed specifically for the 2013 to 2016 Scion FR-S and Subaru BRZ models. This rear anti-sway bar replaces the factory component to significantly reduce body roll during cornering, improving vehicle stability and handling response. Ideal for enthusiasts seeking enhanced cornering performance without sacrificing ride comfort, this sway bar offers adjustable stiffness settings to tailor the driving experience to your preferences and driving conditions.

By upgrading to the ST Suspensions Rear Sway Bar, drivers can expect a more connected feel through turns, increased chassis rigidity, and better overall balance, making it a popular choice for street performance and light track use.

Key Features:

Engineered for performance and durability, the ST Suspensions Rear Sway Bar includes the following key features:

• 17mm (11/16 inch) diameter solid steel bar for increased torsional stiffness
• Three-hole adjustable end links offering 20%, 58%, and 133% stiffness increments over stock
• Spherical bearing (heim joint) links for precise adjustment and unrestricted movement
• Cold-formed solid steel construction with swedged ends for superior strength and reliability
• High-grade polyurethane bushings to reduce deflection and improve response
• Durable powder-coated finish for long-lasting corrosion resistance
• Includes all necessary mounting hardware for a complete installation

Construction & Design:

The ST Suspensions Rear Sway Bar is crafted from cold-formed solid steel, ensuring exceptional strength and rigidity to withstand aggressive driving conditions. The swedged ends enhance durability by providing a secure, interference-free connection to the suspension components. The use of spherical bearing links allows for precise tuning and eliminates binding, which is common with traditional rubber bushings. Polyurethane bushings are included to maintain a firm yet comfortable connection, balancing performance with ride quality. The entire assembly is finished with a high-quality powder coat to protect against corrosion and wear, ensuring longevity.

Installation & Fitment:

This rear sway bar is a direct replacement for the factory anti-roll bar on 2013–2016 Scion FR-S and Subaru BRZ models. Installation requires basic hand tools and moderate mechanical knowledge, with no permanent modifications needed. The included hardware and adjustable links simplify the process, allowing for quick setup and fine-tuning of stiffness settings to match your driving style. Professional installation is recommended for optimal results, but experienced enthusiasts can complete the upgrade in a few hours.

What's Included:

• ST Suspensions Rear Sway Bar (17mm diameter)
• Adjustable spherical bearing (heim joint) end links
• High-grade polyurethane bushings
• All necessary mounting hardware
• Installation instructions

Ideal For:

This rear sway bar is ideal for Scion FR-S and Subaru BRZ owners who want to improve handling precision and reduce body roll during spirited driving or track days. It suits enthusiasts looking for a balance between enhanced performance and everyday drivability, as well as those who desire customizable suspension tuning through adjustable stiffness settings. Whether upgrading a daily driver or preparing a car for autocross or light track use, this sway bar delivers noticeable improvements in chassis control and cornering confidence.

ST Suspensions offers suspension components designed for improved stance and control. Built for enthusiasts who care about feedback and control, their components target ride, handling, and adjustability for everything from daily drivers to dedicated track builds. If you want a more planted feel, cleaner alignment behavior, and confidence in corners, ST Suspensions is a strong choice.