Was doing the egr block off plate as my rear manifold EGR tube is badly leaking. I was going to remove it and noticed that 13mm, 14mm, or 15mm sockets did not fit so I bent the tube up and saw this strange stud looking thing.
The head looks completely round seems the middle part stocking out vaguely has some rusted looking threads. I need ideas or suggestions to remove it. My fear is as it is an exhaust bolt it is going to require a bit or torque to remove it.