Thanks Symone. I was looking for something a bit louder than stock and preferably used/cheaper. There is one for sale here by another member, but we couldn't sadly agree on anything.
Does look similar to mine (see photo). You can easily install it yourself. All you need is a template, a centre punch tool to mark the spots, drill and some touch up paint. Very easy job. Go for it.
Unfortunately I have no idea. The tint was pretty dark. You could not see anything from the outside in, but driving in the dark and reversing was absolutely fine. Oh and don't forget that we also have a reverse camera ;) It also had the Borla S-type exhaust and passed the MOT with no issues...