Lecat, Nigel was absolutely right in that I was referring to the Librands exhaust manifold, 200 cell cat and silencer, the complete Librands system. As far as I am aware no other changes were done although my car was the development car and was dyno tested ((Dynometer not Dinosaur) so they may have fiddled with something else but I doubt it as I didn't pay any extra and they never said anything.
Nigel is absolutely right the English language is strange!
