In order for me to avoid emission problems....and currently having a stock exhaust system....I wanted to know some of the reputable brand makes of high-performance catalytic converters....tried searching for some but no one has ever came up with this topic....

 

SMSP offers a CA-complient high-flow cat.

 

im using Magnaflow on my B18c1 ...

 

i use a powercore. think i got it from summit, long time ago

 

i have a magnaflow high flow cat.. i like it.

 

There's quite a few place that make them. I can't recall anymore aside from the above mentioned, but.....

Actually I do think I've seen this topic before.