Replacing the catalytic converter

I just bought a new Skunk 2 cat back exhaust and i put it on but i still have the stock catalytic converter shuould i replace that to for a better high flow or leave it stock beucase of the heat sheild .
Thanks for your help

def go ahead and spend a little cash and get the high flow cat or you'll just be bottle necking the exhaust with the stock cat. if you dont have an aftermarket header... might as well get that one done while ur down here. :smile:

The headders already done its just the cat thats stock

just IHE with hi flo cat makes minimal power with a louder car and more pollution. not to mention, failing smog.