My stock air filter seems like its broken, its moving up and down with ease. Is this https://youtu.be/CgXDU1F9qZY normal?
Clicked on "this" in the O.P., and watched youtube link. I'm guessing that this is not normal. I had a similar, but not as severe, movement on the air box in the Justa. The plastic "top hats" that go thru the air box, and around the securing screws, were missing, allowing the box to move.