Regarding the need for the arms, there have been
discussions before in this forum about the weight of an unsupported filter vibrating and damaging the air intake hardware. The post I linked to is in the context of the apparently heavier Kuryakyn filter, but it seems a valid concern.
Sadly, since that was written Emil has announced his retirement from Morgan Custom Designs so the
Air Cleaner Support Kit for Kuryakyn may no longer be available.
