im not sure how they do the OBDII tests down here. I know in chicago where i used to live, all they did was the diagnostic plug in test, to check for codes. if the car had no codes, then it passed. so most of the tuner guys around where i lived would have someone clear the codes, then go take the test and pass with flying colors. boosted integras,Evos, and STIs, all with straight exhaust. no cats.