I bought it a couple of years ago from a company in North Carolina. I can't remember their name off the top of my head, but they were in Greensboro and I 'think' their name was Race Specialties Inc or something like that.
They have me a decent deal for it, but all they did was exhaust stuff so I have never had the need to order from them again. I'll get the name and number for any one that is interested.
Yes, it's VERY loud
XR1stang