![]() Higher emissions standards set by the EPA have led to the development of new emissions technology such as diesel particulate filters (DPFs), exhaust gas recirculation (EGR) systems, and urea injection, called diesel exhaust fluid (DEK).Īnd then, of course, new diesels use more advanced variable-geometry turbos and high-pressure common rail fuel injection systems. With times and technology changing so rapidly in the diesel industry, it’s hard to keep up with all the latest tuning software, especially for 2007 and later emissions-controlled diesels.
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