General Motors has developed a fuel-saving system on its V8 and V6 engines. The computer can automatically close half of the cylinders to save fuel. Of course, this is an excellent saving system when you do not need additional power and you move in calm conditions. The AFM system is quite useful, but it works automatically and cannot be disabled manually without third-party controllers. That's why third-party manufacturers have developed software methods to affect the AGM and disable this feature. With the Bully Dog ​​tuner, you can easily turn off the AGM control system and get a constant power boost. Disabling this function leads to constant fuel consumption and increased power when driving in any conditions, regardless of engine load. Disabling the fuel management system can be useful when towing another vehicle, transporting heavy or oversized objects, or when driving on mountainous terrain. You can enable the AGM function anytime using the tuner, and the car will operate in saving mode again when you need it.