I still need to pull out the codes before buying these mil eliminators. According to
http://www.mileliminators.com their mil elim. only prevent the low cat efficiency codes P0420 and P0430.
I have one more doubt that you guys may be able to help me:
The original X pipe was removed and two straight pipes were installed. There is no connection between the exhaust pipes. It is not a H pipe. It is like two I's instead. Does anyone know if this can be any worse or better than having a H pipe or the original X pipe? The mechanics who made the "conversion" (since it had only one exhaust pipe before - it's a V6 coupe), said that there woudn't be any problems in removing the cats and putting two strait pipes with flowmasters on each one of them. They even said that I would have more horse power by doing this. Is this true?