Vman, The snorkels are coming through the back wall of the box It took some work to get the air intake all the way across to come out the passenger side. As you know our Z6 have a little different plumbing than the Z8.
NMKawierider,
I will do some riding next weekend and let you know how it works out. I would not shorten your stacks quite yet. I may be too short. Instead of covering the middle hole in my bed ( the original air intake) I plumed the CVT exhaust out it. I don't plan to get into deep water, but if I do I'm fully snorkeled.