So I installed a new gasket between the UP and ex. man. today. It went fairly well (the exhaust leak is fixed) except when I was reinstalling my EGT probe, I think I tightened it too much. Everything was good and tight but I guess I gave it just a touch too much torque, because it started to spin more easily when I gave it that last 1/4 turn.

So I just stopped and left it.
I figured that it would leak on my test drive but it didn't. I got into full boost a few times and it sounds perfect.
I'm tempted to just leave it but I feel like that could bite me later. What should I do? I think I've heard that the best thing to do would be to tap the hole to the next size and put a hilacoil or something like that in it to restore it. Is that right?
This is the DIY I followed like 4 years ago when I originally did the install except I did the passenger side for some reason:
http://www.scoobymods.com/forums/mod...=egt+probe+tap He suggests that you can check for a leak with soap and water. I suppose I could try that, but I'd think I would hear it under boost if it leaked.
The tap I used is labeled as "1/8 27 Pipe". The gauge (and probe, I'm assuming) are Omori. The gauge hasn't even worked right for a while but I had just emailed JspecTuning on Friday afternoon asking how much a replacement probe would cost, as I believe that may be what's causing the gauge to read incorrectly.
I'm tempted just to tap it to the next largest size and put a short bolt into it since the gauge is most useful after a tune or maybe at the track, things I have no plans to pursue any time soon. Thoughts?