I'm going to invest in a set of the ED30 ones, they look coooooooooollllll

Is there a walkthrough with piccys for us noobie light guys please
Dont want to break anything! Am I right in saying that they will work without any wiring changes, and no VagCom needed for those that dont have it?
I remember reading somewhere about the reflectors needed, are these already part of the UK ED30 lights?
Thanks in advance for any help chaps !