I did what probeturbo mentions, I took everything off the top of the engine right when I got home from work while everything was still hot. My top 02 sensor came right out. Then I sprayed the turbo bolts with PB blaster right before dark, then again after I ate, then again right before I went to bed. Then when I woke up I went out put a socket on them and they came off with little trouble. Once I removed those bolts I got under the car and removed everything else.
This install requires various types of tools and creativity to get to some of the bolts. It's a pain, but well worth it.