These are pictures of the stock plastic supercharger belt tensioner pulley. The outer piece was found laying under the car. The supercharger belt was laying loose under the hood, but with no real severe damage to it or anything else (other than the supercharger belt tensioner pulley). The center of the pulley was still attached to the tensioner. As shown in the pictures below, the plastic melted and separated the inner and outer parts of the pulley.
