Exhaust stud removal

What do you guy's use to remove exhaust studs? I tried the old 2 nut method and could not get 3 of my studs out without buggering my threads up. 2 of the 3 are brand new and I'd rather not destroy them. I thought about getting a stud remover but most of them have a knurled piece that dings up the shaft of the stud.

There should be an area in center thats not threaded you can grab with vise grips

I have usually had good luck with the 2 nuts locked against each other in the past. But if that is not working for you then you will have to try something else. I would give a good soaking with some good penetrate like Kroil oil. Let them soak for a day or so and then try the double nut again. If that still will not move the studs, then you may have to use a stud remover, and then trash the old studs and install new ones. v

never mind gd4now mentioned it. ,

Thanks guy's I ended up oiling and using vice-grips since the 2 nut method failed again, 2 of the new studs were bent once I got them out. Surely from overtightening since there were 2 copper gaskets in each exhaust port lol, once again the high dollar learning curve rears its ugly head. I also apparently put the keepers in backward with the lipped flange to the engine side...live and learn.

wireman wrote: There should be an area in center thats not threaded you can grab with vise grips

Yep...vise grip them muthers....you can add abit of heat around the stud...dont heat the stud....not to much heat.