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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.

Range was founded in 2010 by electronics engineers looking to provide simple to use solutions to Active Fuel Management systems found in GM cars and trucks. The goal was to offer inexpensive products that would not re-flash the factory ECU. After hundreds of hours and thousands of miles testing, Range Technology is an industry leader and has expanded to offering multiple Active Fuel Management, Multi Displacement System and Auto Start/Stop products for late model GM, Chrysler, and Ford applications.

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Range Technology RA003™ AFM/DFM Disabler, Red RA003R
Model: 4015966
Condition: NEW
Our patented technology is the only product that will disable Active or Dynamic Fuel Management without reprogramming the factory ECU. Full power delivery all the time without factory warranty concerns. Features: Range AFM/DFM…
Range Technology RA003™ AFM/DFM Disabler, Blue RA003B
Model: 4015964
Condition: NEW
Our patented technology is the only product that will disable Active or Dynamic Fuel Management without reprogramming the factory ECU. Full power delivery all the time without factory warranty concerns. Features: Range AFM/DFM…
Range Technology 2015-2020 Ford F-150 Ford Start/Stop-Blue RA006B
Model: 4015971
Condition: NEW
No more annoying Start/Stop in stop and go traffic! If your Ford F150 has Auto Start/Stop, we have the solution! Features: No more hesitation when restarting after stopping in traffic! Save on costly repair bills in the future…
Range Technology GM Start/Stop-Blue RA005B
Model: 4015968
Condition: NEW
No more annoying Start/Stop in stop and go traffic! If your GM vehicle has Auto Start/Stop, we have the solution! Features:No more hesitation when restarting after stopping in traffic!Save on costly repair bills in the future by turning…
Range Technology RA003™ AFM/DFM Disabler, Green RA003G
Model: 4015965
Condition: NEW
Our patented technology is the only product that will disable Active or Dynamic Fuel Management without reprogramming the factory ECU. Full power delivery all the time without factory warranty concerns. Features:Range AFM/DFM Disabler…
Range Technology AFM Plus RA002
Model: 4015963
Condition: NEW
Active Fuel Management, available on most GM trucks and SUVs, helps lower fuel costs by enabling V8 engines to behave like four-cylinder engines when cruising with light loads, while seamlessly unleashing their full muscle whenever…
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