Home/2007 GT500 Chassis Stiffeners Steeda Rear shock tower brace, 2005-14 Mustang $365.66 Strut Tower Brace Chrome Moly, 2007-09 GT500 $271.23 Steeda Torque box brace, 2005-14 Mustang $502.89 Steeda Jacking Rails, Low profile, 2005-14 Mustang $315.56 Steeda Chassis X-Brace, behind the rear seat, 2005-14 Mustang hardtop $499.42 Don’t see what you are looking for? Give us a call or send an email. We sell thousands of additional parts not listed on the website.