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Originally Posted by oil pan 4
Do we know if this design ever was adopted?
Sounds like an all around win for everyone.
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I did a quick search but did not see anything brought to market. Searching for that, however, also yielded information on the "EmiCat" from a company called "EmiTec." It seems to be an electric-heated "pre-cat" to increase overall CAT efficiency (sort of) by reducing cold start emissions until the conventional catalyst has time to heat up. That technology has apparently been available a long time. Alpina put the thing into a 1999 12 cyl BMW seven series, apparently. And I found academic papers going back about 20 years. Seems like a cool emissions device. Maybe cost is what keeps it from becoming more common equipment.
Continental Emitec GmbH
Here is the emicat in line in the exhaust:
Pretty clever.