Breather pipes for 2013 2.2L Diesel Defender

Thinking of getting snorkel for my 2013 Defender. I am also aware from watching YouTube videos that breather pipes need to be attached to axles, gearbox and differentials etc, but the videos all show earlier models. Does anyone have any information regarding the later models. Pictures or video links would help

You will have breather pipes already fitted and running up into the engine bay, the pipes will be black small bore plastic and looped over like an umbrella handle, they will require extending to the top of the snorkel.

ta very much, just become a fairly simple job