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The beauty of EGR in this day and age is its electronic and programmable. So, you can have the best of both worlds. You can have the throttle at WOT with tons of EGR pumping in for good fuel economy, or you can close it and get good power. Why does it have to be one or the other? Many OEMs are using a large amount of EGR in their engines to improve fuel economy, yet power isn't sacrificed. Case in point, the new skyactiv engines use a LOT of EGR and still produce great power, and yeah, you get good emissions too. Win win win in my book.
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