i unplugged my Narrow band o2's today. so far, everything is running great, no CEL's... yet
from a start, it is actually easier to start moving, but i had some problems before.
I have also not had and idle problems or cruising problems.. yet
one question though. i got the tune good at idle, even though i still idle high, but under any load i begin to run very rich.. is this normal? i still have lots of bugs to work out, but it seems like this is the better route to go, plus when i upgrade turbos, i wont have to worry about replacing the narrowband o2's
although i will still replace the wideband sensor for piece of mind!