Improving overall engine efficiency, resulting in a more stable idle, higher fuel efficiency, and lower oil contamination, thereby extending the life of critical mechanical components. EGR DPF Exhaust Differential Pressure Sensor 9662143180 For CITROEN For Peugeot For Fiat For 1.4. Function: Improves overall performance, burns fuel efficiently, reduces exhaust emissions, reduces smoke. Material: It has the advantages of high strength, heat resistance, cold resistance, aging resistance, and crack resistance. Enables exhaust gas recirculation to reduce NOx emissions and improve overall combustion efficiency., Manufacturer: ROUSHI