Here's a pic of what I did to resolve the pipe breaking-
http://www.buggymasters.com/forum/at...2&d=1310958484
The additional rods don't allow the pipe to expand to the point of breaking and stabilize it from vibration. The stock pipe as I recall uses the rod to help stabilize the muffler only.The use of a rubber grommet(I thought the same thing) really isn't neccessary- what you need is the pipe and muffler to move with the engine and not independently.