Just fitted some 50mm carbon cans i bought of ebay this weekend after missing out numerous times - not sure of the manufacturer the carbon feels quite rough, the quality of the pipes is very good not bad for £200 quid. The best bit was when I started the bike up the sound is awsome interestingly some of the neighbours thought the sound was great too not sure they will be so happy when I go out on an early ride out !!!
I'll have to post some photo's soon