Cusco 429 311 B14 Rear Sway Bar 14 mm for 2016-2023 Mazda MX-5 ND

Vehicle Fitment

• 2016-2023 Mazda MX-5 / Miata (ND, rear)

Features

• Solid steel construction for improved rigidity over OEM
• 14 mm outer-diameter bar for enhanced cornering stability
• Includes HD rubber bushings for durability and vibration isolation
• Steel mounting brackets for a secure fit
• Bolt-on installation using factory mounting points
• Improves rear-end grip without harshness on daily driving
• Reduces body roll and enhances handling precision
• Painted/coated finish for corrosion resistance

Specifications

• Part Number: 429 311 B14
• Bar Diameter: 14 mm
• Material: High-tensile solid steel
• Bushing: HD rubber
• Mounting: Rear sway bar
• Includes: Steel brackets

Included Components

• 1x Cusco rear sway bar (429 311 B14)
• 2x HD rubber bushings
• 2x Steel mounting brackets
• Hardware kit (bolts, washers)

Product Description

The Cusco 429 311 B14 is a performance rear sway bar tailored for the Mazda MX-5 (ND generation, 2016 and newer). By replacing the OEM bar with a solid 14 mm steel bar, this upgrade significantly improves chassis stability and grip during cornering, reducing unwanted body roll.

Durable HD rubber bushings and sturdy steel brackets provide a secure and long-lasting installation, while maintaining a comfortable ride for everyday use. The bolt-on design ensures easy fitment using factory mounting points, making it a practical upgrade even for enthusiasts who drive their ND Miata daily.

Ideal for both street driving and spirited turns, the 429 311 B14 enhances rear-end responsiveness without sacrificing comfort. It's a reliable way to dial in sharper handling and better balance for your MX-5, especially when combined with other performance suspension components.