This Mustang Parts Installation Guide Works For
A.)Drill 5/16" holes and through-bolt the brace to the strut towers by installing the provided nuts on the underside of the tower. To install the brace this way you will need to jack the car up slightly so that you can reach into the wheel wells to install the nuts underneath the strut tower.
B.)Us a "L" bit to drill the holes at the strut towers. Thread the holes with an 8mm-1.25 tap. This will enable you to install the bolts from the top without jacking up the car to get to the underside of the tower to install the nuts.