Cusco Front Member Power Brace Subaru WRX STI 2002 2007 JDMuscle Cusco Front Member Power Brace 2015+ WRX 2015+ STI Cusco Power Brace Front Crossmember Lower Brace GT86 & BRZ Cusco Front Member Power Brace Subaru WRX STI 2015+ 6A1 492 FM Cusco Power Brace (Rear Side) 2013+ FT86 FTSpeed. Developed by chassis engineers based off the data logged directly from CUSCO motorsports research. The power brace strengthens chassis and minimizes body flex especially at cornering loads, enabling optimal suspension movement at the intended geometrically aligned state. Having the same effect as stitch welding a chassis, the Power Brace series are Bolt on design with some minor body piece (under cover interior etc) trimming and completely effective on all vehicle chassis no matter stock or highly modified. These bars are made and constructed by lightweight steel and engineered inside & out by using the state of the art chassis stress test simulation software by leading motorsports professionals.