So i received my new dorman exhaust manifold came with everything you need but the mounting bolts which i think was an option i overlooked, it was pretty nice the only thing i did was port match the ports as they are not as well shaped as the factory pipe and i found three broken bolts at the rear they were still sticking out just a little over a quarter of an inch, fought trying to get them out with vice grips when i found this stud remover and its amazing took me about ten minutes to get all three bolts out, i also took my cat which was clogged up knocked out all the internals and remounted, sounds and runs so much better. Im happy.