I can't see why it won't come apart. Even with broken stud, it should come apart. I'm thinking a tap of a hammer might loosen the bond between the two mating surfaces. What really scares me is that if those bolts are that difficult, the the bolts holding the manifold onto the head will be even worse.
OK, we had success! it was pretty brutal, but it is done and I think I've earned myself the fabspeed 2nd cat delete pipes to replace the mid-pipes and muffler. passenger side took forever and I was forced to drill out the stud (this should be done from the front looking back) and this lossened every thing, then I melted the remaining studs and wiggled the secondary pipe off. Driver side only took about 15 minutes. I heated 2 bottom nuts red and creaked them off with a socket. Pipe was still stuck rock solid and I melted the top stud while wiggling the pipe. It broke free and the pipe dropped off. the remaining stud in the top hole was still in the manifold/header flange, but pounded out once I cooked the weld on the front. there is a little distortion (elongation of the hole) on the passenger side flange of the second pipe, but dont think that will make a difference, plus, I am kinda serious about the fabspeed upgrade, so...:+)
Last edited by tonythetiger; 05-01-2020 at 04:34 PM.
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