Has anyone removed the exhaust manifold with the engine in the car? Would I need to replace the gasket if I do? I can pull my turbo out just fine in-car. I was attaching the turbo most recently with metal locking nuts that were not the right size, or maybe the stud threads were damaged, and I snapped a stud off. I also have coarse thread studs (didn't know any better at the time) and would like to take this opportunity to replace them with fine thread studs (turbo side, not manifold side)