Scion FR-S Sway Bar - Rear - Perrin Performance - 25mm Adjustable - 2013–2025. This rear sway bar from PERRIN is a direct-fit, adjustable 25mm bar designed for drivers who want firmer rear roll control and sharper cornering without major modifications.

Made as a bolt-in solution for FR-S owners and compatible models, the PERRIN 25mm adjustable rear sway bar lets you fine-tune rear roll stiffness to match your driving style — from daily street use to more spirited backroad driving. Because it uses an adjustable design, you can alter leverage to achieve a more balanced handling feel, reduce understeer, and increase overall chassis control while preserving ride comfort when desired. The design is intended to be a straightforward upgrade that works with stock suspension and many aftermarket setups.

Features

• 25mm diameter rear sway bar — provides increased roll resistance over stock.
• Adjustable mounting positions — allows tuning of rear stiffness to suit driving conditions.
• Direct-fit for 2013–2025 FR-S and compatible models — designed for bolt-in installation.
• Constructed for consistent response — intended to work with factory or upgraded hardware.

If you have questions about fitment, setup, or compatibility with other modifications, call us and our tech staff can help. We offer installation and customization services at two locations: Austin, Texas and the Los Angeles, California area. Call us at 512-982-9393 (TX) or 562-981-6800 (CA) to schedule service or ask technical questions.

If you're planning to purchase multiple items, contact us for possible shipping discounts. We install on premises at both locations.

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov