Well, I got my 2g GS teg about a month ago, and finally got the rear end up in the air today. The whole exhaust system has been replaced by a muffler shop, it looks like the factory sized piping, w/ one resonator, & a magnaflow muffler before the bent pipe in the back. Is this Magnaflow giving me any additional horses over stock, or is it safe to assume that it's probly pretty close to a stock operating setup?