On the cats, i will buy just about ANY cat, many of you import guys have cats worth over $100 to me, got one from a bmw or some volvos? could be a $200 cat. alotta domestic ones from smaller cars will only bring $50 - $75 but the ones from alotta gm's say a cavalier or sunfire will get you $100. same thing with the cat on most mid sized gm's such as luminas, cutlasses, ect. if your not sure take a pic of it and shoot me a pm and ill let ya know.