O2 Simulators for 00 GSR

Does anyone know where I can get (2) O2 Simulators for a '00 GSR for less than $100? Any word is appreciated. Thanks

Why do you want 2? I know the OBDII gsr's had two but why are you taking both out?

i don't know why the hell I wrote two. I just need the one, and then the test pipe. Anyone know where I can get the pair reasonably priced? Thanks

Do a search on google I found a thread on another forum awhile back that showed how to make one. It was fairly simple and cheap.