Thanks for the offer Ian, if I am ever that way I shall have to come have a listen!
Ideally I would like to keep the rear quads, as I am rather fond of how they look - but I am wondering if a pair of new sports cats (or removing 2 of the 4 cats) might release more ponies and the accompanying noise..
I guess if that fails then the last options are changing the silencers or manifold...
