These are the headers I am working on for my personal bike. Going to use one of my Ti cones that will shortened and wedged at top and bottom to make it curve.
(http://i470.photobucket.com/albums/rr62/porsche40/EVO3.jpg)
(http://i470.photobucket.com/albums/rr62/porsche40/EVO1.jpg)
(http://i470.photobucket.com/albums/rr62/porsche40/EVO2.jpg)
(http://i470.photobucket.com/albums/rr62/porsche40/EVO4.jpg)