Hey mate
Yes I purchased a single battery snorkel and placed the second battery inside a steel toolbox I have it in the tray.
With the extra room from where the 2nd battery was I’ve put my catch can there.
Very happy with everything so far.
When I first got mine a few months ago, it blew quite a bit, now that I’ve blocked the egr and installed catch can it only blows smoke when I select the wrong gear.