I'm ready to buy the cat test pipe (aka. race pipe) for my 8, while keeping my stock exhaust in tact. I would like to not have a CEL on so that no flags are raised at service. What O2 fooler should I buy? Where can I get it and how much? Is it a permanent change? I don't know how it works, so if someone who's done it could give me a break down of what they know about it, I'd really appreciate it! Thanks!

 

You might try and PM "Mr. Ed's RX8" he has that setup on his 8 with the O2 simulator. Hope that helps!