Hi Lefts,
I did this mod only the other week, and as YellowTT said rear valance and a sleave.
I messed around and got one of ebay that was the wrong size and then went to the TT shop and got the correct thing for the job (Connector sleave) it was about £30 and well worth it too.
The only other thing i used was one of the old c clamps off the 180 exhaust, because i felt it worked bettter than the U clamp supplied with the connector sleave.
Easy job, should be done in an hour them smiles and some miles for your efforts