It turns off the AFM system upon plugging in, enabling the engine to always run in full V6 or V8 mode. In most cases, an AFM disabler will not reprogram the factory ECU and will not void the warranty.

In addition to keeping your truck in full power 100 percent of the time, the Range AFM/DFM Disabler simply plugs into your OBD-II port and instantly defeats the Active Fuel Management or Dynamic ...

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CARBYTE AFM/DFM Disabler & Auto Start/Stop Eliminator for 2005-2024 GM Trucks, SUVs & Cars. This device works I have a 2020 High Country with a 6.2L / 10 speed transmission.

If you're not sure whether a particular GM vehicle has the AFM system in its engine, there are a few methods to identify it. First, you can check the owner's manual for the vehicle, which can ...