I have an MPI tunnel extension that converts a Yamaha RX 1 with a 151" track to at 162" track. I bought this used last year and decieded not to go with the longer track. I have the MPI extension, light weight rear bumper and 2 extruded Artic Cat grip strips that run the length of the tunnel. What I did not realize is that the prvious owner had removed the outer roll on the extension in order to add the Cat grip strips to the edge of the running boards. I can understnad why he did this as the RX1's do not have a very grippy running board edge. Besides this mod the extension is straight. I have attached some photos. If you are interested make me an offer.
