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The EGR system routes a few of the exhaust gases (6 ? 10%) through the EGR valve, back in towards the Intake System, and ultimately within the combustion chamber. The exhaust gases are inert i.e. they do not burn in the combustion chamber; also, the exhaust gases undertake a few of the space which may preferably be taken with the intake air. This reduces the quantity of intake air available for the combustion process during each Power Stroke; which decreases the peak combustion temperatures. This results in lower NOx emissions. Managing Director Martin Nettleton says: “Last month, we saw a record number of interactions from our website as a result of our advertising and PR, with enquiries coming directly from the contact form online, via email and via calls into our customer service department. Types of Anxiety Disorders