I was looking for a stainless steel exhaust that didnt make the old biddys complain around my area. I today fitted a Scorpion back box and its as quiet as my original standard one! In my opinion the box looks great with a 3 1/2 inch tailpipe!
If your after a bit of noise then this one isnt for you, but if you want stainless and still keeping it very quiet then I recommend this one. I got mine today (courtesy of Bondy!). Thought this thread might be uselfull as a few people have asked about getting one but without the noise.
http://erc.qmuc.ac.uk/cliosport/file.php?image=cs_IMG_0007
http://erc.qmuc.ac.uk/cliosport/file.php?image=cs_IMG_0009