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I'm not surprised about the decrease on COČ, HC and particulate matter, or the increase on NOx. Maybe if a larger amount of Ozone could replace some larger amount of the fresh air at the intake charge, considering there is more Nitrogen in the air than Oxygen, NOx wouldn't be so greatly impacted. Either this, or resorting to some supplemental injection of a volatile fuel, which would also more likely lead to a substantial performance improvement.
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