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yes it could have two cat convertors. Never heard of an exaust regulator, though AFAIK some nominal regulation is done by the cat convertor, and muffler. Typically called 'back-pressure'. Thoretically, if there were a regulator on your exaust and it was removed, I suspect it would cause erroneous data on some engine sensors resulting in poor performance, probably gas milage, or power loss.

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โˆ™ 2005-11-15 07:52:36
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Q: Can a 1991 Lincoln town car have two catalytic converters if not would the other be a regulator if it is what will happen to the car if they are both cut off by a marvelous mechanic?
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