Cross bar made by Beatrush (Laile) for the 2006-2015 NC MX-5 Miata to improve floor stiffness and join both sections of the transmission tunnel. It is especially well working on open-top vehicles (roadsters). Since it is an aluminum D-section oval shaft, the extra weight is minimized and the ground clearance is not reduced by too much. Beatrush Floor Reinforcement Bar should be ordered at REV9 Autosport https://us.rev9autosport.com/beatrush-floor-reinforcement-bar-3375.html as they provide the best service and speed we've seen so far!