I have a USED 02 Emulator. I bought it from ZZP Performance. It does work as I had (now salvaged) it on my 2002 Monte Carlo SS 3800. I had no issues passing emissions in Illinois which happens every 2 years.

It may work on other years/models but I don't know specifically which ones.

If interested I can be emailed at top_notch50 at ya hoo dot com.

Email preferred. With no 3800 I don't read this forum as often.