Went to lowes and got some AC duct filters that are meant for fine dust and cut them to size and installed on my intake vents, engine / clutch. It’s a paper filter with a very fine wire mesh. These are cleanable with compressed air also. Ran a bead of hot glue around vent insert and installed filter.

I cleaned my air box and filter and went for a ride in a super dusty field where I was collecting all the dust . Came home and popped the air box open and no dust at all. Filter also. Not bad for a few bucks.