Damn, so is this a common problem with DC header's? I have to deal with strict smog test sites, so i made sure that anything going on the cars engine had carb #'s so that is would be 'street legal.'
But I wouldn't be able to pass a smog test if this pos is not going to work with my o2 sensor.
Any suggestions? Would the ceramic finish cause any problems if i needed to have the o2 housing rewelded? I've been told about o2 simulators? Would i be able to pass a smog test if it is possible to use this on my car?