Profile: Engine Control Systems specializes in the design and manufacturing of verified exhaust treatment solutions. We are an ISO 9001 certified company. Our product line includes crankcase ventilation filter system, diesel oxidation catalyst, diesel particulate filters, alternative fuel products and exhaust accessories. Our diesel oxidation catalyst is a device which utilizes a chemical process in order to break down pollutants from diesel engines in the exhaust stream, turning them into less harmful components. Our diesel particulate filter is a device designed to remove diesel particulate matter (DPM) or soot, from the exhaust of diesel engines.