I just picked up and installed my new recoil and muffler heat shield for the 800 twin. There is some sort of aluminum disc on the outside of the recoil that adds support to the center post. The new muffler heat shield rivets on in place of the old inner shield. It has a stand off attached to it that creates an air gap between the shield and the recoil which should help with the heat issue. It was easy to install. Just drill out five rivets and install the new one with five new rivets. Piece of cake!!!