Hmmm....more
Silmotor appear to do some cans but there are no pictures !!!!
http://www.silmotor.net/commerce/cat491.htm Also - bear in mind a dyno session might be necessary to get and system setup correctly for your bike along with a box of tricks possibly - Dynojet power commander seems to be the popular choice but here is another...
http://www.cbtimports.com/techlusion.html (ps delete the techlusion.html bit to also see some info on Staintune exhausts)