I'm in the process of fitting a DRC Edge2 Tail Tidy to the XT660Z. So far I've not had to modify the frame at all. Fits well and looks good. Pix to follow
Purchased here; mine was �42.00 with postage; looks like they are about �47 posted today: Best price I could find
http://www.dirtbikebitz.com/drc-edge...er-p-9726.html