It's now 2yrs later ... i've got 180k on the odometer. Happy to report i passed Drive Clean, just barely. Results for anyone who needs a baseline reference on an ESI with no mods:

ASM2525 Test
(test / limit / reading / result)
HC ppm: 65 64 PASS
CO %: 0.36 0.10 PASS
NO ppm: 484 50 PASS
RPM: 1539 VALID
DILUTION: 15.5 VALID

CURB IDLE TEST:
(test / limit / reading / result)
HC ppm: 200 52 PASS
CO %: 1.00 0.05 PASS
NO ppm: n/a n/a n/a
RPM: 821 VALID
DILUTION: 15.4 VALID


'95 Talon ESI