The NISSENS 98325 EGR module plays a crucial role in reducing nitrogen oxide (NOx) emissions from your vehicle's exhaust system. By recirculating a portion of the exhaust gas back into the combustion chamber, it lowers combustion temperatures, thereby minimizing the formation of harmful NOx. This module is engineered to meet or exceed original equipment specifications, ensuring a precise fit and reliable operation. Its robust construction is designed to withstand the demanding conditions of the exhaust system, providing long-lasting durability. Proper functioning of the EGR system is essential for maintaining engine performance, fuel efficiency, and compliance with environmental regulations. A faulty EGR module can lead to increased emissions, poor engine performance, rough idling, and potential check engine light illumination.