size of cat converters: HP difference??

[RysRed96GT]

i heard in another thread that the size of the converter makes a difference in the hp. is this true? if so, what's better, a smaller or larger one? my mustangtuning catted x came in the mail and the cats are pretty small. is this better or worse than normal sized?

 

[tomustang]

a bigger converter is better considering the fact that the netting is restricting the flow of the exhaust, if the cat is bigger there's more flow inside the cat. but the mustangtuning pipe is high flow isn't it?

 

[RysRed96GT]

a bigger converter is better considering the fact that the netting is restricting the flow of the exhaust, if the cat is bigger there's more flow inside the cat. but the mustangtuning pipe is high flow isn't it?

supposably it is. they must be using smaller cats for a reason maybe.

 

[RysRed96GT]

actually come to think of it. i think its just shorter, not thinner. i keep forgetting these dont have your normal heat shields on them.