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Re: Is approx 1% co in front of the cat too much?
Posted to Emissions Forum on 11/9/2000 3 Replies

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Hi Aaron;

Porsche and Audi provide pre-CAT test pipes on their vehicles, and the pre-cat spec for CO is 1.0% +/- 0.20%. So you learned the hard way. Sorry I did not see your message sooner.

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