Mate, I have the same on my car (secondary cats and no rear silencers) and it has passed two mot's at different station. Don't take it to a main dealer.
Here's mine
[video=youtube;3TgIu-NsWP8]https://www.youtube.com/watch?v=3TgIu-NsWP8[/video]
[video=youtube;j_-W0PH-ghc]https://www.youtube.com/watch?v=j_-W0PH-ghc[/video]