After waiting what seemed like forever, I finally got my Rhinehart replacement rear head exhaust pipe after waiting for fifteen days for it to arrive at my dealer. As soon as they got it in yesterday's afternoon delivery they put it on today and I had it by noon today to the tune of $440.65! It is a new improved head pipe that won't crack like the Rhinehart's did. They also replaced the heat shield on the pipe too. I can honestly say that although I was blindsided with this unforseen expense the bike seems to run better without that gaping hole in the exhaust pipe. As I follow up on my original post, I decided to not weld the original like I said I was going to in heeding the collective consenses of this forum. I felt that although I could have welded it satifactorally where it wouldn't leak anymore it wouldn't stand up to the bending and stress that riding the back would have put on it given the way the clamp was incorporated right into the old pipe. It is a different design on the new pipe so hopefully I won't have to look back on this problem again. ( famous last words) Thanks to all who have weighed in on this for me!! Right now I am totally happy to have the bike back once again.