How many cats?

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09-12-2008, 03:52 PM

ptr2279

1st Gear

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Join Date: Feb 2006

Location: Easton Pa

Posts: 29

How many cats?

Was wondering the setup for my 2001 Audi A6 4.2. Does it have 4 catalytic converters?

09-12-2008, 04:09 PM

oc_audica

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Join Date: Jun 2007

Location: Orange County/Newport Beach, CA

Posts: 733

It's common to have (i think) pre-cats in the downpipes, and the 2 main cats in the center.

09-12-2008, 05:05 PM

ptr2279

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Join Date: Feb 2006

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Thanks for the info. I wasn't too sure

09-13-2008, 12:35 AM

auditech79

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Join Date: Feb 2007

Location: Nor Cal

Posts: 9,004

Only two cats on all V engines in the audi line up to the 05 year. Going beyond into the new S6 with the lambroghini V-10 in it has more than 2 cats.

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