Some day maybe when I get a NA Rocket if I ever do. Until then it can sit on the shelf. I could tell there was a massive improvement on Gracie just by seeing the changes in the A/F meter so I suspect it would show good results. Either way I am not one to run a bike without filters especially since I travel to different areas in the states. There may not be so much dust where you are Art especially since you do not venture more then 50 miles from home if that much.