i remember hearing in another thread that "the mustangtuning x sounded amazing w/flows". check it out tell me wut you all think. its dirt cheap.
http://www.mustangtuning.com/mutux9gt.html

http://www.mustangtuning.com/mutux9gt.html

sounds amazing, gets compliments all the time, NO issues w/ fitment at all, and felt a very nice SOTP gain from it as well
the guys at the shop where a friend and I installed it at were surprised at how smooth it sounded. they stood outside while i test drove it and liked the sound of it, even at WOT it isnt real raspy like the basanni. 