Well... I have a ghetto version, lol I just disconnect the mufflers with a wrench and offset the pipes every time I want loud, usually during the week I make it quiet again, it's nice to have choices.
But yeah when it's wide open it sounds amazing!
2008 4.0 SOLD (I will miss my first stang forever)
2011 5.0 black on black with 3.73 manual
and I still get over 26 mpg