Go to your local motorcycle dealer and pick up 4 header pipe expansion chamber springs; mount these from each corner of the muffler to the airframe on a 45
degree angle.  Should work!

Ken Powell

Ken,
Unfortunately the springs made for 2 cycles will not hold up to rotary exhaust temps.
The other thing needed is a inside/outside sleeve mounted on the engine to make the springs work.
Bill Jepson

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