The Exhaust Gas Recirculation (EGR) system in diesel vehicles helps reduce harmful emissions by recirculating exhaust gases back into the engine. While this lowers nitrogen oxides (NOx) emissions, it can negatively affect engine performance over time, leading some diesel owners to opt for EGR delete kits.

An EGR delete kit removes or disables the EGR system, preventing exhaust gases from re-entering the engine and allowing only fresh air into the combustion chamber. This results in cleaner combustion, improved fuel efficiency, more power, reduced carbon buildup, and lower maintenance costs. However, the installation process is complex and may require professional help, with legal considerations to keep in mind depending on your location.