I have the full RB exhaust and emissions removed. I can taste and smell exhaust after being around my car when idleing. Does anyone know of a Cat that will bolt up without the use of an air pump?

 

Unless i'm mistaken, I believe all cats require air pumps.

 

I think some cats do not require air pumps. IIRC it might have been made by random technologies or catco. Not sure do a search.

 

I am currently running a header flowed my a Random Tech High Flow Converter, and you can either hook up the air pump or pulg the holes, I pluged them cause my putting air into the exhaust in mid stream is just creatingmore back pressure