Alright, I finally ordered a X-pipe today from Husker High Performance. They had a mandrel bent stainless steel pipe for $45. Far cheeper than the $80 Magnaflow or the even more expensive Dr. Gas. The Magnaflow's center section is made from stamped steel, which doesn't seem like a good idea to me. But I'll be sure to post results once I get it installed and do some test runs.
http://www.exhaustproslinc.com/humaxpiass.html