A DOD delete is a process of removing the Displacement on Demand (DOD) system from an engine. The DOD system is also known as Active Fuel Management (AFM), which is a fuel management approach for large displacement gasoline engines. The goal of the DOD system is to decrease the number of cylinders burning fuel during light engine load to improve fuel economy. However, the DOD system has led to several engine issues, including wear, increased oil consumption, and loss of power. Therefore, DOD delete or AFM delete approaches were introduced to rectify these issues. The DOD delete procedure involves replacing the lifters, valley cover, and various other parts to completely get rid of the internal components of the DOD system. A DOD delete kit usually includes new lifters, pushrods, DOD delete plugs, and valve springs. The DOD delete process is usually the same for all generation four LS engines, though there are more steps if it has variable valve timing. The DOD delete procedure is becoming increasingly popular, especially in higher mileage vehicles, as users realize the rapidly reducing benefits of DOD. It is also recommended for individuals that want to install performance upgrades.