If the rest of the stainless exhaust system is fine, it may be cost effective to have it cut open and baffles repaired or replaced by an exhaust specialist?
My Xflow has a larger manifold and early +8 silencer, Miltek renewed the innards to help flow and noise!

If you are thinking of replacing because of a rattle in the baffles maybe the old hammer trick would be worth a try first?
Bash a dent in the casing around where the rattle is and it will pinch the baffles and hold them tight! It's an old motorcycling trick. If it works it could save you a few bob, if you were going to replace it anyway then there is nothing to loose in trying.