Exhaust Stud Removal. This method of broken stud removal works for spots where you can't get a drill & stud extractor in place.
Using a MIG welder, carefully build up a bead of weld on the stud. Then place a nut over the bead & weld in the centre of the nut to the bead.
Allow it all to COOL before trying to undo it as this lets the stud shrink slightly.
You may have to repeat this a couple of times, but it will come out.
Just remember to allow it to cool each time.
Tags: Exhaust Stud Removal, exhaust stud, broken, stud, remove, removal, manifold, snapped, bolt