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A Japanese market ZC computer is what I'd use. Then again, I fail to see the need to go over 112mph/180kMh.
i would agree - having tried all of them (PM6, PM7 & PG7), i can tell you that for normal driving, you can't tell any difference between them - the PM6 has fuel cut-off at 7200rpm and the PM7 & PG7 have fuel cut-off at 7800rpm - the only difference between the PM7 & PG7 is the speed limiter on the PM7 - the PM7 (JDM) can sometimes be hard to find and are usually overpriced - if you can't get a PM7 for a reasonable price, use the 88-89 Integra (not 86-87) PG7