Hey mate,
We haven't plumbing in a catch can - it's all OEM. But yes the catch can will divert a lot of the oil vapour and residue floating around the engine courtesy of the EGR system so we may look at that later on.
Unfortunately the Sydney weather didn't permit work on the truck over the weekend, and its sitting at a sparky at the moment getting final electrics bolted up so maybe something for a little later in the week.