I must apologize for my absence. The best way to reach me is typically FB or via email. facebook.com/mazdaspeedwiretuck or as Big E mentioned above, eric@alafiacomputers.com
looks very nice! I have not had time to fit mine and work out a cold pipe solution yet. Looks like you had to do very minimal grinding on yours. Gen2 I assume?
From reading the description of the ST meth spacer, it says it is the same diameter as the IM opening, not the TB. Read it and you'll see what I mean.
I don't know how out TB compares, so I am just guessing that perhaps the opening is marginally different.
I think all of us will experience this at least once. Your idle pressure is likely below 200, as low as 75. An extremely noisy HPFP is common too when the PRV bursts. If you can pass any air through it, it is bad. I was able to blow a little through mine with my mouth. Glad you have one to...