TUBI for a newbie - questions

apologies for asking this, as i know it's been covered loads of times elsewhere, but being new to owning a Coupe i want to be sure i get this right.

Have had my Coupe (03) CC for a month now and am looking to upgrade the exhaust to a TUBI. I'm not really sure where to get it from or who to install it? Would dealership install?
I live in Scotland....so that's going to limit what's available to me. Is it possible to order online and get it delivered to a local specialist and get them to fit? What would i order exactly, aren't there various options?


Any help/insight to this would be great.

thnx.