Anything is possible. A better question would be "is it feasible?"
yes it can kill you
Not normally.
No!
You have a problem with your engine.
no you cant
Weld the place where it is leaking
on the exhuast header pipes
Any that is not stainless steel
ac or exhuast
in the exhuast system one before the cat and one after the cat
Oxygen sensor is located at the exhuast Manifold.
Yes cause it is cOnsiderd a noise pollution