Mr. Scott,
So, you have cut the bolt.
And it is now frozen in the flange.
You would not heat it up to knock it out?
Now you want to use the tail pipe again.
They are threaded into the muffler flange.
I wonder how dremel tool would solve this.
Heat is an important tool, if you have the right kind.
Propane bottle is not the answer here.
Not hot.
Acetaleyne / oxygen is.

Good Afternoon,

Fred

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I have been using a Dremel Moto tool with cutting disc on all my muffler
repairs. Cut it directly and no messing around with heating
torches......
Scott
'91 DDoor GL

I'm afraid I'm at the end of my rope....I've been changing my header
pipes and mufflers on my two vanagons for 10 years now and I'm finally
defeated by flange nuts anf bolts that are so rounded and frozen that