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Catalytic Converters - illegal to remove where you are - update on exhaust Catalytic Converters - illegal to remove where you are - update on exhaust
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Old 01-16-2009, 09:40 AM
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There are only one set of cats on US cars, mounted on the headers. We do have a pair of resonators after the headers before the muffler, but no secondary cats.

I know it was a mod on the e53 to remove the larger center resonator, and I was considering replacing mine with a couple of bullet resonators. Just not sure what the end result will be.
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