Alutec 4pts. aluminum Tri-Chamber Front strut bar help stiffens the chassis of the Mazda Miata ND by connecting shock towers together to reduce lateral movement at the upper mounting points of the suspension. The Tri-Chamber bar reinforces the suspension and reduces the flex in the front suspension, increases handling performance, improves steering feel and sensitivity. Helps with the initial turn-in of the vehicle and reduces interior rattles and flexing when going over rough surfaces.