NA/NB Miata Full Side Mount Seat BracketNA NB Miata Full Side Mount Seat Bracket Bring track inspired performance and quality craftsmanship to your build with the NA NB Miata Full Side Mount Seat Bracket by R Theory Motorsports. Designed for enthusiasts who demand function, form, and reliability, this component is engineered to integrate cleanly with your chassis and stand up to hard driving. Key Features High quality materials and precise manufacturing from R Theory Motorsports Optimized