Ok, I had a stage I done when my bike was purchased in 2011. All this time I thought the Air Filter was a K&N until I recently started to perform some of the routine maint myself and realized the filter is an "HD Dry Elemnt Filter". Yesterday, I went to the dealer and picked up a K&N. My problem is the "Dry Element filter" has the bolt in it "pictured" and the K&N I purchased doesn't (also pictured). I tried to remove this bolt but it seems that it isn't made to be removed so I stopped before I stripped it. Did I buy the wrong filter or can this bolt be removed and placed on the new K&N???