I have to replace my cat on my '99 Integra LS as a result of bad valve seals blowing oil through the exhaust. I am putting together an LS/VTEC turbo motor to drop into the car. Is it a wise investment to get a metalic core cat or will a ceramic core do the job. I'm not talking all out race car here, but I figured the added heat might warrant the metalic core. Any thoughts or suggestions? Thanx.

 

Cat, as in catalytic convertor right? If so, I've never heard of a ceramic or metallic core convertor. All convertors are made of the same materials...

If it's a race car, no convertor is the way to go.

 

metallic is much stronger than ceramic.