Cusco Power Brace, Rear Underside, for 2002 07 Subaru Impreza WRX STI Cusco Chassis Braces for CUS684 492 C Fitment Industries Cusco Center Floor Power Brace 2015 2021 Subaru WRX STI 2013 2017 The Cusco Power Brace Engine Room Tension Bars for the Subaru BRZ Cusco Power Brace Front Member Subaru SG5 Walmart.com. 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. Power Brace Engine Room Strut Tower to Front Support Frame ***For Turbo Model only***