AUJ posted the HELP brand of Spark plug non-foulers as a fix for gutting your pre-cat, and not having to re-locate the o2 sensors to after the 2nd cat.

So, I guess what this is telling me is that with the cone of the O2 sensor pulled out from the pipe, it still get's the heat, but it doesn't sniff as much of the gas. Thus you don't throw a too rich CEL?

Is there room in the stock O2 locations to run two of these things?

Does anyone else have thoughts on it?<ul><li><a href="http://forums.audiworld.com/s4/msgs/1704305.phtml">http://forums.audiworld.com/s4/msgs/1704305.phtml</a></li></ul>