Whiteline Rear Sway Bar + Brace

2013–2016 Scion FR-S, 2017–2020 Toyota 86, 2013–2020 Subaru BRZ

BSR54XZ

Overview:

The Whiteline 18mm Adjustable Rear Sway Bar + Brace is a premium suspension upgrade designed specifically for the Scion FR-S (2013–2016), Toyota 86 (2017–2020), and Subaru BRZ (2013–2020). This adjustable sway bar enhances your vehicle’s handling by reducing body roll during cornering, resulting in improved grip, better tire wear, and a more composed driving experience. Ideal for enthusiasts seeking a balance between daily comfort and spirited driving performance, this sway bar allows you to fine-tune roll stiffness without the need to replace the entire bar.

By increasing the sway bar’s stiffness, the Whiteline 18mm Rear Sway Bar helps distribute cornering forces more evenly across the tires, keeping them flatter and more upright. This translates to greater traction and confidence through bends, making it one of the most cost-effective handling upgrades available for these popular sports cars.

Key Features:

Whiteline’s 18mm Adjustable Rear Sway Bar + Brace offers a range of benefits engineered for precision and durability:

• Adjustable lever arms allow tuning of roll stiffness to suit different driving conditions and preferences
• Increases rear roll resistance to reduce body lean and improve cornering stability
• Manufactured from high-grade spring steel for superior strength and longevity
• Powder-coated finish provides corrosion resistance and a sleek appearance
• Includes high-performance polyurethane mounting bushes for improved suspension response and durability
• 3-point adjustable design enables easy customization without replacing the entire sway bar
• Enhances tire contact patch for improved grip and more even tire wear
• Improves overall vehicle balance and handling dynamics
• DIY-friendly bolt-on installation with all necessary hardware included

Construction & Design:

Whiteline’s 18mm Rear Sway Bar is crafted from premium spring steel, chosen for its excellent strength-to-weight ratio and resilience under high stress. The bar undergoes a precision manufacturing process before receiving a durable powder-coated finish that protects against rust and wear. The included polyurethane bushes are engineered to provide a firmer, more responsive connection compared to standard rubber mounts, enhancing suspension feedback and longevity. The adjustable lever arms are designed for easy tuning, allowing drivers to dial in the perfect balance of comfort and performance without the need for additional parts.

Installation & Fitment:

This sway bar is designed as a direct fit for the rear suspension of the Scion FR-S (2013–2016), Toyota 86 (2017–2020), and Subaru BRZ (2013–2020). Installation is straightforward and can be completed with basic hand tools in a home garage. The kit includes all necessary mounting hardware and polyurethane bushes, enabling a clean bolt-on upgrade. No modifications to the vehicle’s suspension or chassis are required, making it an accessible upgrade for enthusiasts of all skill levels.

What's Included:

• Whiteline 18mm Adjustable Rear Sway Bar
• Adjustable lever arms for tuning roll stiffness
• High-performance polyurethane mounting bushes
• All necessary mounting hardware
• Installation instructions

Ideal For:

This adjustable rear sway bar is perfect for drivers who want to improve their vehicle’s handling characteristics without sacrificing daily drivability. It suits enthusiasts who participate in autocross, track days, or spirited street driving and desire a customizable suspension setup. The Whiteline 18mm Rear Sway Bar + Brace is also an excellent choice for those looking to reduce understeer and enhance overall chassis balance in their FR-S, 86, or BRZ.

Whiteline is a performance suspension specialist with a reputation for components that improve balance, steering precision, and grip—sway bars, bushings, control arms, and complete handling kits built for spirited street driving, autocross, and track use. If you’re chasing a tighter, more confidence-inspiring chassis without going full racecar harshness, Whiteline is a proven bolt-on solution.