Does any one know what the hell a three way cat is, I just order new headers for my car so I took a look in the mazda shop manual to see how the old one comes out, and there it was a three way cat right after the headers.

And yes I did a search but found nothing, so I'm asking for help.

 

What year is your car? That makes a difference.

 

My car is a 2001 sedan es.

 

everything you ever wanted to know about cats.
Random Technology

 

Thanks

 

Three way cat?
That's one kinky ***** you got there...

 

thanks for the random tech webpage. I learned a lot.
and fossil,
that was a really bad joke