I've got the Wolf bra from JC Whitney. It was a real pain in the @$$ to stretch it around the bumper area, but it sure is SNUG!! (They said it's not supposed to fit the GT's, but by God, I MADE it fit!
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By the way, the pics for the Wolf bra on the JCW site are wrong. The actual Wold bra is the both the lower part, and the FULL upper part for the hood. The pics show the kind that ends right at the fron, with the little wind guard things. It's actually the kind that looks like a "T" which secures at the top of the hood, going between the windshield washer nozzles. It's TOP notch quality, and a steal at only $90!!
But like as is commonly said, make sure the covered area is SPOTLESS before you put the bra on (to avoid scratches), take it off when it rains, and if you DO leave it on, make sure to check often to see if any debris made its way between the bra and the paint.
Good Luck!