hi-flow cat passing smog?

[teampulse]

I was wondering if those of you with hi-flow cats have passed smog in california with them? i need a new cat and was gonna grab a hi-flow cat for cheap but just wanted to see if they pass smog normally. thanks for any help

[dan240]

Mine wouldn't but that doesn't mean yours won't. You do need to make sure that you purchase a 3-way cat for testing in California and most, if not all, of the high flow cats I have seen are 2-way (the catalyst).

Hopefully someone that has passed will let you know what they ran.

[dopeassjackson]

i got a cheap ($50) 3in in/out 4inch around cat off ebay. i replaced a test pipe with it and it made NO diferance at all. its also OBD2 compliant. the catalyst is only about 5 inches long.