Does anybody know why you cant buy just the rear cooler? It looks to be part of the chassis/tunnel. I got in a minor accident on the trails over last weekend and I clipped a guy coming around an icy corner. My back left hit his front left. Nohting happened to his at all, just a scuff. I thought oh well just the bumper is bent. I got home and took all the plastic off. The rear coolers are bent from the tunnel back. I am going to try to straighten it tommorrow hoping it doesnt crack. Just wanted to let everybody know that it seemed like I barely hit him and alot of damaged occured. Just me or is the rear of this sled weak?