The zip-ties won't last , for reasons already explained.

Did you check the status of the hangars for the center resonator/muffler?

If that unit is not secured properly, then there will be stresses transferred to the muffler.

Spend a couple bucks extra to get the heavy-duty hangar rubbers, or the ones with cables molded into them.

Look for the cause of the problem, not the symptom of the problem.

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