Cool idea, Hub. I'd have to have some idea of what the ohm reading equated to in f/a ratios before I screwed around with fuel trims. Call it a "poor man who knows WTF he's doing A/F sniffer." All you have to do with a PC and AT-200 or WB2 is hit "accept fuel trims."

sorry to post in an older how-to...I'm just stuck and needing some help in this area. I have a 2008 SE and I also have a Bazzaz, including autotune (got it for a hell of a deal). I'm interested in putting on a set of slipons and adding the bazzaz o2 sensor into the factory header. Is it possible to mount the O2 ahead of the cat and still be in the collector as to monitor all cylinders? I would really love a full exhaust but I, personally, like the balanced look of a dual exhaust and am not ready to spend $2000 on the Brocks setup.

Any information would be greatly appreciated!

Nick