Ok I went ahead and installed MAC axlebacks on my 2005 GT this weekend.
INCREDIBLE! The sound of this exhaust reminds me of my old 1970 Mach 1 351C and that had Hooker Super Competition Headers and 4" exhaust.
This afternoon someone asked me if I had removed the mufflers.
Tomorrow everyone sitting in rush hour traffic will get to experience this sound symphony. LOL. :eyepoppin