EGR Packages are collections of parts that work together to replace a failing Exhaust Gas Recirculation (EGR) system. A failing EGR system can cause reduced fuel efficiency, increased emissions, and a loss of performance. Replacing the EGR system with an EGR package can restore these lost functions and improve the overall health of your vehicle. When considering an EGR package, it is important to choose one that is compatible with your specific vehicle make and model.