u guys have think these will help or no?

http://www.mossmustangstore.com/Shop...eIndexID=53011

 

I know that rear chassis braces are very useful on some chassis (Grand National Buick, for example)...but I don't know about the new Mustang.

These look interesting, though I'd rather see them made out of steel, and also made in such a way that all three are tied together. The way they are installed in that image doesn't really stiffen the body as far as torque is concerned. But, if there was a flat plate between them, or something like a "X" between the mounting points, then you'd be talking.

The "A" part looks like the least effective. It's too close to the existing metal deck where the speakers are located.. "B" is better. It's in more of an open area where there's no existing bracing, and the larger tabs where it bolts on will make it stiffer. I can't really see where "C" is mounted, but it looks like it ties in close to the lower shock mount. If so, that is a good spot!