Need computer chip # !!!!!!!

Hi guys, I ordered a custom chip from Protomotive and they asked me for my computer #, 0261 200 082. They called me back asking for the number on my original chip, but ever since I replaced the original with my Racing Dynamics chip, I have misplaced it. I just finished looking for an hour, with no luck. Does anyone know how i can find out what my # should be?? I know it's a longshot but I gotta ask.
Thanks

Mike
86 Carrera t