Hi there everyone. I am a new member to the site although I have been reading for awhile. I am not even sure if I am posting this message in the proper spot so any help from others is appreciated. I have a 2001 Grand Prix (obviously, lol) with the 3.8L. I just brought it to the dealer to get the catalytic converter looked at cause my service engine light is on. He told me that the cat is indeed clogged and needs to be replaced. As soon as I mentioned that its under warranty he said that it is not the original cat and that it is not covered. Since I bought this car used I am unsure if the cat is original or not and would like to know how i can find out if it is indeed the original one.
