Just been down to Auto Italia (nee PowerFiat) and had a stainless-steel exhaust fitted. Being an ol'fart, I had the 2-box system with a slash-cut and it's bedding-in really well - nice burble and deep note but not boomy or overly noisy - top job as always.
I've had this s/less cat back system to without the slash cut tail pipe. £280 for cat back if I remember right.
Is a very subtle burble on idle and quite'ish for normal driving.
When you put your foot down the noise increases nicely so good all round exhaust IMO.
Thing is (which annoys me) a Corsa with some dustbin sized exhaust and couple of herberts in it, will still get a look over my 20vt just because of the noise!
haha