Looking at the exhaust on the GT, I can't help but think that the muffler box design resembles that found on Lamborghini Diablos and Murcis. Interestingly, on Lambo's these things weigh like 50lbs. While the hp gain on a GT after replacing the mufflers w/ a cat-back exhaust appears to be nothing, there sure is something said for taking off 50lbs of weight in the rear. I don't know if Ford used heavy gauge steel for it like Lamborghini, but it would be interesting to see if someone who removed the muffler box actually weighed it after it was removed.
Anyone?
Anyone?