Cusco Rear Sway Bar

2013–2016 Scion FR-S, 2017–2018 Toyota 86, 2013–2018 Subaru BRZ

965 311 B16

Overview:

The Cusco Rear Sway Bar (16mm / Firm) is a premium suspension upgrade designed specifically for the Scion FR-S (2013–2016), Toyota 86 (2017–2018), and Subaru BRZ (2013–2018). This rear sway bar significantly enhances vehicle stability by reducing body roll during aggressive cornering, delivering a more connected and responsive driving experience. Ideal for enthusiasts seeking improved handling without compromising daily drivability, the Cusco sway bar offers a noticeable performance boost over the factory equipment.

By increasing rear roll stiffness by 168% compared to the original equipment (OE) sway bar, this Cusco component sharpens rear-end control and balance, helping drivers maintain composure through tight turns and spirited driving scenarios.

Key Features:

Engineered for precision and durability, the Cusco Rear Sway Bar includes the following key features:

• 16mm diameter hollow design for optimal strength-to-weight ratio
• 168% stiffer than the OE rear sway bar for enhanced handling
• Firm tuning to reduce body roll and improve cornering stability
• Constructed from high-quality materials for long-lasting performance
• Includes all necessary bushings for straightforward installation
• Direct bolt-on fitment for Scion FR-S, Toyota 86, and Subaru BRZ models listed
• Improves rear-end grip and steering response without harshness
• Designed to complement factory and aftermarket suspension setups

Construction & Design:

The Cusco Rear Sway Bar is crafted from high-grade steel with a hollow tubular design that balances rigidity and weight savings. This construction method allows the sway bar to be significantly stiffer than stock while minimizing unsprung mass, which is critical for maintaining suspension responsiveness. The bar’s firm 16mm diameter is engineered to resist flexing under load, ensuring consistent handling characteristics during aggressive driving.

Precision manufacturing and durable bushings included in the kit ensure a secure fit and long service life, even under demanding conditions. Cusco’s attention to detail in material selection and design guarantees that this sway bar will withstand the rigors of both street and track use.

Installation & Fitment:

The Cusco Rear Sway Bar is designed for a direct bolt-on installation with no modifications required. It fits perfectly on the rear suspension of the 2013–2016 Scion FR-S, 2017–2018 Toyota 86, and 2013–2018 Subaru BRZ models. Installation can typically be completed with basic hand tools and does not require specialized equipment, making it accessible for experienced DIY enthusiasts and professional installers alike.

Included bushings simplify the process and ensure proper alignment and function. For best results, it is recommended to have the vehicle’s suspension inspected and aligned after installation.

What's Included:

• 16mm Cusco Rear Sway Bar (Firm)
• High-quality sway bar bushings
• Mounting hardware
• Installation instructions

Ideal For:

This Cusco Rear Sway Bar is ideal for drivers who want to improve their vehicle’s cornering performance and reduce body roll without sacrificing everyday comfort. It is well-suited for:

• Enthusiasts seeking enhanced handling on street and track
• Owners of Scion FR-S, Toyota 86, and Subaru BRZ looking for a cost-effective suspension upgrade
• Drivers who want a firmer rear suspension balance to complement front sway bar upgrades
• Those aiming to improve steering response and vehicle stability during spirited driving

Cusco is a Japanese automotive parts company specializing in suspension components, particularly coilover kits, and chassis reinforcements. Their products are designed to enhance vehicle handling and stability, catering to both street and track applications, and are popular among enthusiasts seeking reliable performance upgrades.