HARDRACE Front Lower Brace are designed to stiffen up the chassis and reduce vehicle chassis flex. This will increase the rigidity of your car during high speed driving and hard cornering. This is why HARDRACE Front Lower Brace can maximizes the performance of the suspension and brings better handling feeling and quicker response.. Reduce the chassis flex . Increase the rigidity  Note: 1 PCS/SET  Fits: Luxgen S5 2012-2020 Luxgen U6 2013-