I was wondering wich catalytic converter to run on my setup? I will be runnig a 99 b18c (jdm gsr) engine in a 99 ek hatch. I already bought my Dc jdm 4-1 header with a spoon sports N1 exhaust (rear section). I was thinking a magnaflow 2.5" cat for obd2 cars. What do you guys run?

Want to be smog legal.

Thank you

 

try to get a jdm itr cat to go with it.

 

anybody else?

 

carsound cat or a testpipe

 

no need for cat, least not in Oklahoma lol