I want to make my 900 custom a little louder but not a lot more than what it is. I guess more throaty on accelerations. I read that you can remove the screens for a stage 1 but I'm unsure how to do this. Do i shove something down the exhaust pipe hole until i come up against something that blocks it path than i ram my object through? If so how do i get the screen out of the pipe. If that is the way to do it. Anyone have pictures of this ?