I have unbolted the cat from the turbo, removed the egr tube, taken the o2 sensors out, unbolted (ok cut off due to rust) the rear clamp and taken the cat to engine bracket off . There doesn't seem to be enough room to wiggle the cat out?!? do i need to remove the entire exhaust manifold? I am trying to get the cat out to reweld the cat mounting bracket that has cracked off and now makes the car loud. thanks for any advice