What is a good website to get a Catalytic Converter. I did the GM Parts website and it was almost $500 for a new CAT. Thats pricey! Is there a cheaper and perhaps just as good quality some where else. I have a 2004 GTP CompG with 100,300 miles. I perhaps may have the same problem and with that many miles anything is possible. Everything else seems perfect. I had the tranny filter and fluid flushed and everything checked out fine. I also had them replace the spark plugs and fuel filter. It just seems like it doesn't want go like go from a stand still. Maybe its just my imagination I mean I was use to driving a Grand Am. There is more car on a Grand Prix so I assume its going to be a little slower of the line. I also should with 100k just replace the O2 sensors now? Perhaps it would just be beneficial. UGH cars are money pits even though I LOVE HER.
