Mr. Scott,
I think to be safe is good--
But you have bolts cut.
Do you cut them on the end?
Or in the center?
I would cut in center heat flange and twist out with vice grip and be
done with all frozen bolt's while your drilling.
Save the threads of flange is good too.
I do not understand why you don't like heat.
It is fast.
How do you take muffler hanger bolts out?
Heat is good or buy 50 dollar hangers.
If you are careful heat is best, and sometime only way.
You say dremel tool. to small for this job.

Good Evening.

Fred

E-mail message

 take a look at whether the piece is worth saving..... if so get the
drill and drill out what remains of the bolt, hold it in a vice, etc. .
Better then lying under the bus and doing this....... and usually the
piece you are trying to save has to get tossed anyway.
Personally, I don't like playing with a torch under a motor.........just
preference.
Scott
'91 DDoor GL

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 too

Fred