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A comment on Why Palladium Is Suddenly a More Precious Metal. Parent comment

Re:Why Palladium Is Suddenly a More Precious Metal by jdsully on Monday October 28, 2019 @07:42PM (#21382976)
Cats are required everywhere, but in CA they need to contain much more precious metals to meet the state standards than they would for just the national requirements. Most automakers choose to standardize on CA emissions standards nationally.

> The California Air Resources Board (CARB) is stricter on their regulations. CARB requires more precious metals and rigorous testing which is why they cost more than EPA catalytic converters.

https://autoquarterly.com/best-catalytic-converters/#Federal...

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Re:Why Palladium Is Suddenly a More Precious Metal by ryandrake on Monday October 28, 2019 @07:53PM (#21383037)
Not only are they required but CA requires $pecific ones with their CARB seal of approval. I had an older car from outside CA that never needed to comply with CA’s rules. When I moved to CA I tried to do the right thing by installing a working cat and tuning my car so it did not pollute. Got it to blow clean as a whistle but the state still failed me because it wasn’t one of their expensive approved devices. Ended up having to sell it out of state because CA labeled my car as “tampered.” You cant win with these guys.
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