OK, you W126 exhaust system experts

[raymr]

I got most of the front exhaust system pieces out of the car. Now how do you remove the bolts holding the pipe to the manifold?

The big bulby precat blocks all access, and I can't get enough torque using a flex socket. I managed to grind the front bolt head off using my Dremel. But I can't reach the Dremel to the back one. I guess I can still drive it to the shop if I absolutely have to. I don't have a cutting torch or anything industrial like that.

I can't quit now, HELP!