If the light is on on an OBDII car it will not pass emissions in MD. Not sure if that is true for other states. I bought a wayne angle block (google it) and it works flawlessly. I have an aftermarket cat because I couldn't afford the $1800 at the time when mine went out and the CEL light was always on because of it. If I cleared the CEL it would come back in ~100 miles. With the wayne angle block I have put ~500 miles on it so far and no CEL. As for getting the cat off, there was a thread here a while back and it seemed that most people couldn't get the header bolts off without drilling them out, search around for it. __________________ ~Dave~ 98 328ti Morea Grun slicktop 11 128i space gray slicktop 13 JGC WK2 Deep Cherry Search | RealOEM |