Cusco 429 311 B14 14mm Solid Rear Sway Bar 2016-2025 Mazda MX-5 Miata

The Cusco 429 311 B14 is a high-performance 14mm solid rear sway bar engineered specifically for 2016-2025 Mazda MX-5 Miata and Roadster models. This upgraded anti-roll bar replaces the factory 11mm bar with a substantially stiffer 14mm diameter unit, delivering 325% of stock stiffness for dramatically improved handling performance.

Key Features:

• 14mm solid steel construction provides superior torsional resistance compared to factory 11mm bar
• Direct bolt-on installation using factory mounting locations and hardware
• Includes Cusco bushings and brackets for complete installation
• Finished in signature Cusco Blue
• Dramatically reduces body roll during hard cornering and high-speed lane changes
• Minimizes excessive shock absorber stroke for sharper, more precise handling
• Helps correct understeer and oversteer characteristics when properly configured
• Approximately 0.5 hour installation time

Cusco's rear sway bar upgrade offers one of the most effective ways to improve handling without sacrificing ride comfort. The larger diameter steel bar keeps the vehicle more stable during cornering by reducing weight transfer, while maintaining the comfortable ride quality that makes daily driving enjoyable.