OK, finally going ahead and starting the DCS-5, some small changes, doing the changes now to improve the curve some more, soon, I am having the pipe pieces lazer jetted for a perfect fit, working on better leak proff flanges, and modifying the silencer and end caps to be quieter.  I should be able to post pics next month on the quad with more Dyno Graphs , I am only making 10 pipes on this run, once they are gone they are gone. I know i have at least 5 pipes already spoken for.