Installed the Airbox. Used two nutplated on the right box edge to screw the airbox to two of the tabs of the cowling fasteners. Used an adel clamp to secure the left side of the airbox. There is a temperature sensor that needs to be installed into the airbox. The problem is that the sensor does not have a nut with it since it is usually screwed into a threaded port on carburetors. The diameter is just under 1/2" and the threads look close to 18. I suspect it is a metric nut. I'll have to find out what nut is used.
Installed the muffler brace between the muffler and the rear engine mount plate.