A lower arm bar is an alloy/steel bar that ties the lower suspension pick-up points of a vehicle (with an independent suspension) together. It increases chassis rigidity by bracing the left and right lower-control-arm sheet metal mounting points. The lower arm bar is designed to reduce the non-pivoting movement of the control arms and to stiffen the subframe to lessen the distortion of the lower suspension, especially during hard cornering. As a result, it improves the handling and steering response of the vehicle much like a strut bar. A lower arm bar provides additional benefits in front-wheel drive vehicles by reducing wheel hop and torque steer. The bar lowers ground clearance by approximately 30 millimeters on most aftermarket installations.