Sports Exhaust

[richquy]

Posting on behalf of a colleague of mine - he has a Cooper S and, as the title suggests, is looking for a s/exhaust - one that doesn't boom and sound 'chav'-like. Any suggestions?? Haven't done a search but hopefully some people can come up with a short-list.

Also, he wants to know of any recommended tuning companies near Brands Hatch area??

Thanks in advance.