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Re: is 3500ppm nox precat on a 97 cavalier too high?
Posted to Emissions Forum on 2/17/2004

Is that what you said? I must have misread! I apologize for my lack of reading and comprehension skills.

1. 20-50% depending on engine, EGR, etc. Actually it may go DOWN with enough EGR. I won't argue the insignificance part, since it is true that the effica... Login to read more.