Anyone know where to get one online. I'm confused which ones are Ca compliant. Are they the ones that say OBD11?

 

I believe with CA, you need to purchase one from Honda directly.

 

Aftermarket parts that could affect emissions have to be CARB approved, but I don't think that any aftermarket catalytic converters have ever been approved. Thus only stock ones are legal.

 

I have seen aftermarket (Magnaflow) parts that are CA approved for 1.7L engines on ebay.

 

I have aftermarket cat on my Toyota truck, some ***** steal that shiet middle of the night couple years ago, been have the aftermarket cat and still passing smog.

Also, I just put in an aftermarket non-carb CAT for my Odyssey off Ebay today, CEL been on for almost a year. I cleared the CEL after install, waiting for it to cycle. Will let you know if it pass smog sometime later.

Don't hurt to try, if doesn't work, consider a lesson learned..