Trying to take the header off my son's 99. We can not pull the header off because of the last stud close to the FW and the EGF tube binding.

1. What is the best way to do this?
2. We tried to take the EGR tube off, but the 2 bolts at the back of the engine is very hard to get to and loosen.
3. Is taking the stud is an option? If yes, what is the best way to do that?

Thanks,
Gab