anyone hear of these guys? http://www.blackwidowexhausts.co.uk...300mm-oval-stainless-steel-silencer-238-p.asp
These look like the "Sandy bike spares " exhausts some people had a bit of a struggle getting these to fit on some models of VFR with a fair bit of grunt being required to get them to line up Plenty of reviews here https://www.google.com.au/?gws_rd=ssl#q=sandy+bike+spares+vfr+exhaust
Their system for the 6th gen is outta sight! http://www.blackwidowexhausts.co.uk/vfr800-vfr-800-79-c.asp