We at Patrick Custom carbon are making a flat carbon fiber tunnel covers for the bottom and the top in the center of the tunnel. The under side will help eliminate the ice/slush/snow build up under the sled. Carbon fiber does not conduct cold so it will not freeze thus no build up! I would have liked to slid the carbon fiber in the extruded side panels, but they welded the grove closed at the rear at the heat exchanger cross over. We had to surface apply the carbon fiber cover with the existing holes that need to be drilled out and re-pop rivet. Easy to install. We will send the pop rivets needed. The top cover just looks cool. check them out at www.partrickcustomcarbon.com