theres several other companies that offer similar units. directed engineering offers a wideband kit, and FJO also has a very nice one that untilizes data-logging.

neither of these units allow you to adjust your a/f though, they just display your a/f ratio via a wideband sensor that put in the bung supplied with the kits that you weld to your downpipe.

can you please explain a little more about simply putting a wideband in place of the stock o2, then have fuel control? does this still let the ecu make adjustment, or the user have full control over the a/f?. ive never heard of this kind of option unless you go stand alone.