I think the site is www.mustangexhaust.com That is the setup I have on my 98gt. I think it sounds killer. And the drone isnt as bad as people make it out to be! But then again I like to hear my car! I even have turndowns and it doesnt bother me. If your thinking about the set-up go for it!
i have them turned down with an x pipe and cats its suprisingly not that loud at idle but we you get on it it screams!!
the drone.. i used to not mind it at all but it does get old and anoying wen cruising around town.. but if its a nice day and you got the windows down youll never get sick of listening to it =)