hi i've got the y piece and remus ,much more responsive and more surging which is nothing to a rsv mille, no more grannys walking out now in roads , must be the half baffle, does seem a little rich, oh well can't have it both ways.
there is a dyno in hinckley, from memeory its close to one of the Triumph facories
for the life of me i dont remember the name, i think the company used to be called SRS?
I will ask my mate who has his Kwak serviced there for the number and PM you with it