Smog Question - Does catalytic converter need an E.O. number? - Ford Powerstroke Diesel Forum
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post #1 of 3 Old 11-12-2013, 10:48 AM Thread Starter
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Smog Question - Does catalytic converter need an E.O. number?

I'd like to swap out my cat since my truck has about 112k miles on it, and is tuned. My guess is that it is probably affecting exhaust flow, but am not sure how to confirm this.

I'd like to swap it out with a new one, and am looking at just welding in a new Magnaflow cat. I don't want to run without one in CA.

Does anyone know if they actually check a cat for an E.O. number, or just confirm that there is one on there? There's no way in hell I'm buying a new Ford one, as they are about $2300 over the counter at a dealership.

Thanks for any input or experiences!

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post #2 of 3 Old 03-20-2014, 01:00 PM
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I'd just try and find a used one (OEM) to put on your rig. I do not believe there are any aftermarket units that are CARB approved.

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post #3 of 3 Old 03-20-2014, 06:50 PM
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There's no reason your cat should have any problems at 112k

you can remove the cat, wash it out with a degreaser like simple green and water and reinstall
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