Quote:
Originally Posted by Chrysler kid
Egr is only used to reduce emissions and only came on the honda civic vx and hx models from 1992-2000. If there was any benefit honda would have saved time and resources and just put them on all of their models. (They now all come with egr valves to meet ulev emission standards)
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EGR used to only be used to reduce emissions. Now, they're using it not only to increase partial load mileage, but also power since it allows you to advance ignition timing. Many OEMs have been using it for years now weather its internal or external. Some are even doing cooled external EGR to get higher EGR flow rates.