Bruce, I took a quick look, and:
1. Mine has a bracket on the back side of the metal "cyclone" - one part of the bracket bolts to one side of the muffler clamp, and the other part of the bracket goes under a nut on the valve cover.
2. There"s a short piece of 1 1/2 inch rubber hose, with a 90-degree bend, that connects the "cyclone" to the top cover of the air cleaner. (The cyclone requires a different top cover for the air cleaner from the one that originally came on the tractor.)
I may not have described it very well - hopefully a picture will help.