I had to take the turbo off and then the manifold and I broke off a stud, it is not leaking although I stressed it and thought it was pretty likely. I am having a weird boosting problem that has nothing to do with and exhaust leak though.
I have only 4 of 7 being used on mine after my 20b install. Nate (OMX) only had limited time to help with my install so we decided to put everything on anyways and just let the mani warp until I had either the funds to have a shop take them out or the time to do it myself. Left it like that all summer and fall and the mani is still not warped. I'll get around to it in the spring.
For 2 years i was missing one and never knew it till i did a trubo swap. It was the one of the far passger corner, so i never could really see it/notice it. It would always leak on startup, and do that "click click click" thing.
I fixed it now, but do run a regular stailness steel bolt as one of them, rather than a stud/nut combo.