CARB Cats/Downpipes
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Joined: 05-18-05
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From: Boston & SoCal
http://www.bar.ca.gov/80_BARResource...esentation.pdf
The emission testing in California is changing this year but the new procedures likely won't be in place until summer time. Until then if you're bringing a car in you'll want it as close to stock as possible unless you can find a lenient shop (which isn't always easy finding one willing to risk their license and the higher fines this year). If you have to get a tail pipe sniffer test before the OBD-II-only testing is phased in later in the year a stock cat will be best as many of the cheap "high flow" catalysts don't clean very well and other than OEM the only legal cat is a special OBD-II certified cat for your specific model and year with a CARB EO (California Air Resources Board, Executive Order) number.
The emission testing in California is changing this year but the new procedures likely won't be in place until summer time. Until then if you're bringing a car in you'll want it as close to stock as possible unless you can find a lenient shop (which isn't always easy finding one willing to risk their license and the higher fines this year). If you have to get a tail pipe sniffer test before the OBD-II-only testing is phased in later in the year a stock cat will be best as many of the cheap "high flow" catalysts don't clean very well and other than OEM the only legal cat is a special OBD-II certified cat for your specific model and year with a CARB EO (California Air Resources Board, Executive Order) number.
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