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just go to the HELP section at autozone and get a spark plug non fouler. Im not sure the size but graphite was the one that recommended it to me. All you do is screw the 02 sensor into it, then plug it into the catalytic converter. I have been running it for about a month or two (i think) and it still works. really cheap also.
i have read the simulator gives mixed results, as does the non fouler mod, but for the price of the spark plug non fouler it is worth a shot. wayyy less than that simulator