my catalytic converter is rattling just below the 2,000 rpm mark, and it's driving me nuts, i thought it was the heat shield around it, but i don't think it is now, cuz i played around with that. the dealership rapes you, so what is a good brand to go with without doing the straight pipe thing. Catco? any suggestions, or brands that have worked for you?

 

Carsound supposedly has a good reputation.