Yep, easily done!
mine has a produro laser jobbie, it came off a klr 650. these units are stainless, quiet, tuff as old boots- well it needs to be!.
anyhow they come up on ebay from time to time, the link pipe is a tenere/ tengai hybrid actually jmo supplied the tenere bit as i wanted to retain the standard yamaha system for when i sell up.
http://www.ebay.co.uk/itm/XT600-Lase...item35bb5f995d this is the type