Motorcraft Emissions parts are engineered to provide original equipment performance and reliability. All Motorcraft Emission component designs undergo rigorous lab and real world tests in order to meet Ford engineering standards. Engineered and calibrated as an integral part of the overall emissions system; Motorcraft Emissions parts work in conjunction with other emission components to help deliver optimal fuel efficiency and emissions compliance. Strict tolerances help minimize false check engine lights and service department visits. Complete prove out testing is completed on all emissions components; including, depending on application, performance, electrical, reliability and durability tests.