I will argue the point with logic Mark. To compare those flakey brackets under the Mustang to a Camaro fender brace is apples vs oranges. At least the Camaro brace serves some purpose...I can think of nothing those flimbsy pieces of metal under the Mustang could possibly contribute.
They are most certainly not a suspension part, so that is out of the way. Let's see...they are attached to the lower portion of the radiator support at the front and to the subframe/rocker panel at the rear. What does all this have in common? Why everything is joined at the crossmember...hmm. Ok, I shall deem it part of the crossmember...we can call it a crossmember brace if you like. The NHRA rule book says I can alter the crossmember for oil pan removal. That's my story and I'm sticking to it.
Oh yeah...I can easily replace those brackets with something of my own design that will actually serve a purpose if the need arises.