As an option to AMink's suggestion, you can loosen up the bolts on the turbo so that there is a space between it and the manifold. I cut a piece of cardboard from a cereal box and slipped it in between the turbo and the manifold, to trap the shavings. After drilling and tapping, I blew out the shavings, removed the cardboard and tightened up the bolts. Worked great. If you remove the turbo, you may have to deal with the oil inlet and outlet. I don't know how much of a problem that is but, the cardboard trick works.
If you have never done this job before, be sure not to tap into the manifold too much as the probe will bottom-out in the back of the manifold. I was told to tap in far enough that the probe turns in 3-1/2 turns. That should keep you safe.
I am not a mechanic and have done this proceedure only once, on my '03. Before I did this installation, I read about it here on the TDR, and that is where I got my information. You guys that know which end of a wrench to grab, feel free to correct me if my suggestions are wrong or if you have better ideas. I appreciate your suggestions,very much, and have learned a lot from you.
Hope this helps, a little bit.
Joe F. (Buffalo)