Didn't want to derail this thread
I've read very conflicting stories about mishimoto here so I was thinking that if I do everything dilligently and install a pressure gauge I should be fine - but OK, I'll check into other options, I believe you guys.
So regarding the gauge pressure sensor - I'd just replace the factory one with the gauge sensor and that should be it? Excuse my ignorance, just want to make sure I got it right. Also, thanks for the patience and info!