What is the best catalytic converter to buy?

What is the best aftermarket catalytic converter to buy that will give you more power and sound?|||go to summitracing.com and order a high flow catalytic converter.|||A factory or OE style converter that was designed to be on your vehicle is your best choice. There is no such thing a a"racing" catalytic converter. Focus on mufflers/dual exhaust for sound and a bit of extra performance.|||Catalytic converters don't give you power and sound, they rob it. You need an aftermarket exhaust with some good size tubing to give you more flow.|||if yours is still good leave it alone/no replacement can alter anything/mufflers alter sound