My rear 02 sensors are enabled. With no error codes my car passes. I'm sure it would pass the sniffer as well. As long as all your sensors are enabled and you throw no codes, you will pass in TX.

I read that you passed emissions with long tube headers, by the OBD port. Here in AZ I just had my 05 GT tested and they also only use the OBD port (Im stock exhaust so far). I wanted to ask how you passed? I want to pass in the future with long tubes.. as far as AZ is concerned. Your help would be much appreciated.