How do I know which mode I'm in?
What's the difference between AFM and DFM?| 04/28/2020
An overview of the differences between GM's Active Fuel Management and Dynamic Fuel Management systems.
Range Technology AFM Disabler Module| 01/30/2020
Has the Active Fuel Management system in your V6 or V8-powered GM car been slowing you down? Are you tired of the annoying shuddering of your engine and the drone it produces from constantly activating and deactivating cylinders? Meet Range Technology's answer: the AFM Disabler. Our module is plug-and-play and reverts your vehicle back to stock when removed. Because no tuning is involved with your vehicle's computer, this product will not void the factory warranty. Not only does the AFM Disabler keep your vehicle running smoothly, but it will also have you running on all cylinders, all the time.