This hardware package effectively removes the Displacement on Demand (DOD) system from specific General Motors LS-based engines, primarily those found in Pontiac G8 GT vehicles. The DOD system, also known as Active Fuel Management (AFM), deactivates cylinders under light load conditions to improve fuel economy. The kit typically includes components such as a non-DOD camshaft, lifters, valley cover, and gaskets necessary for the conversion.
Eliminating the factory-installed system addresses concerns related to potential mechanical failures associated with the DOD lifters, which can lead to significant engine damage. Furthermore, this modification allows for improved engine performance and increased reliability, particularly when aiming for higher horsepower levels through aftermarket performance enhancements. The original system, while intended to improve fuel efficiency, is often viewed as a bottleneck to achieving optimal performance in these engines. This conversion ensures all cylinders are active at all times, providing a more consistent power delivery.
