I have a 96 pgt, I know it is not a mx6 but basicly the same. THe other day my check engine light came on. THe shop told me that it was my 2nd bank cat converter and that just the part would be $500. They told me there is 3 cat conveters on it. I am holding off cause it just does not seem right. If i do need to replace something I would at least like to do it after matket and proformance. Is there really 3 cat converters?