Well it looks as though I'm going to invest in a Dynomax Cat-Back along with either their headers or Flowtech's.....but I digress, the question is what size catalytic converter do I need?? I'm pretty sure it will be 2 1/4" in/out, but what about the length?? And what is all this crap about 2-way or 3-way??

 

why not a 3 inch cat?

 

exactly.

 

Factory you have a 2 1/4 cat but that's useless. Get a 3" cat and make sure you get TPI exhaust systems; they're bigger than the TBI ones.

 

why the hell is everyone after cat back its all junk.