if the cats are blown or hollowed out. would new cats take power away?

 

A Hi-Flow Cat would NOT take away any HP. In fact a new Cat may increase your performance because the motor was engineered to use one .

 

It'll make the computer happy too. That's the way to make these cars run well.

 

thanks guys. sales people suck, where i bought it the sales people said that you are goin to lose power. and i told them i don't think so. but they insisted on that it would. ill set them straight next time i see them.

 

Catalytic converts do reduce the performance, but a high flow has MINIMAL loss.