No sorry, was on my old series 1 rx7, was just used to cool air box(ontop of carb).
Was just a duct and about 4 inches of flexitube aimed at front of airbox.
Havent tried it with my Series 6, I did try space the bonnet but didn't make much difference according to the Link meters, but its a NA, turbo applications may differ.
Start with those radiator splitters, that stop air escaping over your radiator, and play with under car splitters too, diverting air in and around bottom of your engine.
I'll be playing with different things this racing season so will post up results, is only a s6 rx7 but should help skylines out with future builds.