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getting rid of it maybe but hollowing it out will mess the flow and you may lose hp
 

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watson80 said:
just buy a hi flow cat

How exactly does it work? What is the difference if u get a hi flow or just hollow out the stock cat???
 

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Hollowing out the stock catalytic converter basically removes the restriction in airflow imposed by the catalyst which may free up about 2 hp. Unfortuneately it also screws up the emissions system on your car and can cause all sorts of other problems. A high flow cat will give you the horsepower gains without the sacrifices Watson80 is right.
 

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slvrsleeper said:
Hollowing out the stock catalytic converter basically removes the restriction in airflow imposed by the catalyst which may free up about 2 hp. Unfortuneately it also screws up the emissions system on your car and can cause all sorts of other problems. A high flow cat will give you the horsepower gains without the sacrifices Watson80 is right.
Thanks a lot
 

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Anyone have any makes/part numbers of high-flow cat converters that will bolt up to the stock header / exhaust?

I know that replacing the manifold and cat-back exhaust as well will yield the best performance, but I don't have the $$ to do it all at once. I'm already installing the Kore cat-back exhaust, and I may change the manifold later.
 
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