Cusco 429 492 C Floor Center Power Brace for 16-24 Mazda MX-5 Miata ND 1.5L/2.0L

Vehicle Fitment

• 2016-2024 Mazda MX-5 Miata (ND / ND5RC Roadster & RF, 1.5L I4, RWD)
• 2016-2024 Mazda MX-5 Miata (ND / ND5RC Roadster & RF, 2.0L I4, RWD)
• Does NOT fit Mazda MX-5 Convertible prior to 2016 (NC) or other platforms

Features

• Power Brace design bolts to floor center for increased chassis rigidity
• Reduces body flex under cornering loads for sharper handling
• Bolt-on installation using factory holes--no drilling required
• Constructed from lightweight, high-strength steel
• Finished in durable powder coat to prevent corrosion
• Engineered based on motorsport data for enhanced structural performance
• Effect similar to chassis stitch-welding without permanent modifications
• Designed and manufactured by Cusco with Japanese precision

Specifications

• Position: Floor Center Power Brace
• Material: High-strength steel, powder coated
• Weight: ~13 lbs (5.9 kg)
• Installation: Bolt-on via OEM chassis holes
• Compatibility: Mazda MX-5 ND (2016+), both Roadster and RF models

Included Components

• 1x Cusco Power Brace (Floor Center, Part 429 492 C)
• 1x Hardware kit (bolts, nuts, washers)
• 1x Installation instructions sheet

Product Description

The Cusco 429 492 C Power Brace is a bolt-on chassis strengthening solution crafted specifically for the 2016-2024 Mazda MX-5 Miata (ND Roadster and RF) with internal floor reinforcement. By stiffening the floor center, this brace significantly reduces chassis flex, translating to sharper steering response, improved handling, and better driver feedback through corners--without resorting to permanent modifications like stitch-welding.

Made from lightweight high-strength steel and finished with a durable powder coat, the brace bolts directly to OEM chassis mounting points, ensuring a clean, reversible installation. Ideal for enthusiasts who track their ND Miata or seek elevated road performance, this brace was engineered using race-derived data to balance rigidity and everyday usability. Total weight is approximately 13 lbs.

Fitment confirmed through 2024 models. Compatibility with 2025 and newer Miatas has not been officially verified. Please confirm your model year (ND / ND5RC) before purchase.