Home/2007-11 GT500 Chassis Stiffeners Steeda Rear shock tower brace, 2005-14 Mustang $335.00 Strut Tower Brace Chrome Moly, 2007-09 GT500 $248.94 Steeda Torque box brace, 2005-14 Mustang $458.42 Steeda Jacking Rails, Low profile, 2005-14 Mustang $268.00 Steeda Chassis X-Brace, behind the rear seat, 2005-14 Mustang hardtop $403.61