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Flickr:Giorgos Gotsis: Christopher Ward keeps growing fast! This brand of luxury watches for men and some women dares to break the rules. Their mission is always to create beautiful, distinctive quality wristwatches that everybody can afford. The EGR system routes many of the exhaust gases (6 ? 10%) through the EGR valve, last on the Intake System, and in the end in the combustion chamber. The exhaust gases are inert i.e. they don't burn within the combustion chamber; also, the exhaust gases use up a number of the space which could preferably be taken with the intake air. This decreases the volume of intake air available for the combustion process during each Power Stroke; which experts claim decreases the peak combustion temperatures. This leads to lower NOx emissions.