I've put less than 400 miles on this since I bought it new from JHPUSA.com a few months ago...paid $450 for it new 2 months ago, and that's before the porting. By 'porting', I mean that it's been welded on the outside of the flange, and the welds on the inside of the piping have been ground down. I'll let it go for $350 shipped. I've got pics available, LMK and I'll email them to you. edit: I'll also include the 2.5" donut gasket.