Old thread but thanks for posting this. About to pull mine. And for the people wondering why someone would want to do something so INSANE as pulling the 2nd O2 sensor once it is disabled. The sensor can overheat in a test pipe, break off, and forever live in your exhaust and probably damage it.

Hahaha. People get so fighty over the internet...

 

LOL man this is a funny thread from ages ago. Yes my logic was the same as yours. Sensors wear out, no need to leave it in. Mine has been happily removed for a while now..