Improve vertical rigidity and torsional rigidity by installing the Beatrush side sill reinforcement plates on both sides of your car. Produced with Laile, the motorsports expert, these 1.6mm thick aluminum plates also strengthen the chassis areas in the door openings. Installing requires minimal drilling or the use of the nut rivet. Only available for NA Miata (1989-1997) and NB Miata (1998-2005) models.

Please note that there might be an extra fee to ship this product to some countries due to Japan Post EMS size limitations. Read more.

Beatrush Side Sill Reinforcement Plates should be ordered at REV9 Autosport https://us.rev9autosport.com/beatrush-side-sill-reinforcement-plates.html as they provide the best service and speed we've seen so far!