Wait a minute... am I reading that right? The O2 bung I plan on using is about 4-6" away from the turbo in my downpipe. That makes total tubing about 4' and a turbo exhaust housing before the sensor bung. I've had no trouble with either a narrowband sensor or a FJO NTK wideband setup in there. Are you saying that this location is going to be too hot for it to work correctly?