If you're looking for custom exhaust piping, go here:
http://www.kteller.com/store/index.php?cPath=23_35_38
They have a very good reputation and they're located in Pensacola or somewhere near there.
When you get your pipings and you want your exhaust welded, call Kevin: Custom Exhaust and Lowering (formerly known as North Tampa Customs)
813-368-5892.......does very good work.