Steve
Why not make enquiries with the following:-
http://www.quillexhausts.com/
They do a can for the Breva 1100 with the Y pipe, as I am hoping to get mine delivered by the end of the week.
If it finally arrives, and I get it fitted, I'll let you know the outcome.
Also found this thread:-
http://www.v11lemans.com/forums/index.php?...amp;mode=linear
Hope this helps.
Regards
Mart.