Ordered a Full system exhaust for me 2013 636.

I do not think it is a major install beside uninstalling the servo...

I think me and a friend should be able to knock it out in a hour or two, though my question is; should I even bother doing it myself, or get the dealer down the street to do the install. If I was to do it myself, is there any good documents/videos how to do full system, I can only find servo uninstall and slip on videos.

Any advise or ideas would be greatly appreciated.