Ok me and my dad are having a rather disturbing argument about a cat. I am pretty sure I have heard of rx7s running a high flow cat with headers and a presilencer. This would just be a universal hi flow cat, and I know I've heard that they just melt if they aren't ceramic but I thought I heard of people running them. Can someone fill me in that has tried this or knows if it would work. Because I can get a hi-flow from a friend for 30 dollars. Just curious. thanx

 

I've cooked two already,now I don't run one.straight back to the muffler & loud...

 

I need one to pass emmisions and then I will take it off. I am getting a presilencer and maybe putting a dyno max between my header and N1.