Well, it's been awhile, so thought I'd post up some follow-up info. Some people have asked about it as well, so this may answer some questions.
I checked everything under the car last weekend while changing oil, checking all bolts, nuts, clamps, hoses, etc. Everything is holding up very well. Most of the fasteners were still good and tight, although the smaller clamps on the smaller couplers on the y-pipe were just a little loose. It was recommended to check the exhaust system nuts and bolts, and there were ok on my car.
Everything was in really good condition, no leaks, no rubbing that I could see of any pipes or hoses. Part of the time taken in putting it all in was making sure there was adequate clearance everywhere, and at times that was hard to accomplish.
And, the setup over all is so f'n sweet, a real work of art!
I am running the mild 15.5 psi wastegate springs right now and have the boost reference line directly connected to the FRPP intake manifold near the throttle body. I see just under 16 psi peak on my boost gauge, usually 15.6-15.8. This is on 93 pump gas.
Tuning was done by Manuel (aka Lito), and it is spot-on.
Now that cooler weather is getting here, I'll be dialing her in at the track, then may play around with some "adjustments" (boost and/or fuel).