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Tesstudio AFM/DFM Disabler for GM V6/V8, Plug & Play OBD-II Module
Tesstudio AFM/DFM Disabler for GM V6/V8 Vehicles, Plug & Play OBD-II Module
Tesstudio GM AFM/DFM Disabler Plug & Play OBD-II Module for V6/V8 Engines, No Tune Required
AFM DFM Disabler GM V6/V8 - Plug & Play OBD-II No Tune - Tesstudio
Tesstudio AFM/DFM Disabler for GM V6/V8 Cars & Trucks, OBD-II Plug & Play

AFM/DFM Active Fuel Management Disabler Plug & Play Compatible GM V6 V8 Vehicle Car Truck

SKU: TESO0153
Prix de vente$74.00 USD Prix normal$110.00 USD
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Tesstudio AFM/DFM Disabler for GM V6/V8, Plug & Play OBD-II Module
AFM/DFM Active Fuel Management Disabler Plug & Play Compatible GM V6 V8 Vehicle Car Truck
Prix de vente$74.00 USD Prix normal$110.00 USD

Plug & Play OBD-II Module

AFM/DFM Disabler for GM V6 & V8 Vehicles

Keep compatible GM vehicles out of Active Fuel Management or Dynamic Fuel Management cylinder-deactivation mode with a simple OBD-II plug-in module. No tuning, no wiring, no programming, and no permanent ECU modification.

GM V6 / V8 OBD-II Plug-In No Tune Removable Anytime

Important: Always confirm fitment before ordering. This module is not compatible with 10-speed transmission models, 2022+ Refresh models, or 2019+ Silverado/Sierra 5.3L or 6.2L models with 10-speed transmissions.

Tesstudio AFM DFM disabler for GM V6 and V8 OBD-II plug and play module

Helps stop cylinder deactivation

Designed for compatible GM vehicles equipped with AFM or DFM, helping keep the engine in full-cylinder mode while the module is plugged in.

No tune or wiring

Plugs into the OBD-II port with no programming, no wiring, and no permanent modification to the factory ECU.

Remove when needed

Unplug the module anytime to return the vehicle to factory behavior. Unplug it if the vehicle will sit unused for an extended period.

Built for vehicle use

The existing product notes specify low-power sleep mode and an operating range from -45°F to 180°F for tough driving conditions.

GM AFM DFM disabler OBD-II plug and play module no tune required

For drivers who want factory-style control without a tune

AFM and DFM systems can switch compatible engines into cylinder-deactivation modes during light-load driving. This module is made for shoppers who want a removable, plug-in way to keep compatible GM V6/V8 vehicles in full-cylinder operation without installing a tune.

  • Useful for compatible GM trucks, SUVs, and cars with AFM/DFM systems.
  • Good for owners who prefer a reversible OBD-II solution.
  • Not recommended for modified vehicles.

Fitment & Compatibility Notes

Product type AFM/DFM Active Fuel Management Disabler, OBD-II plug-in module
Compatible vehicle family Most compatible GM V6 and V8 vehicles with AFM/DFM, including Silverado, Sierra, Tahoe, Suburban, Escalade, and select Chevrolet, Cadillac, Buick, Holden, Pontiac, and Saturn models from 2007 onward.
Installation Plug into the vehicle OBD-II port. No tools, wiring, programming, or tuning required.
Not compatible with 10-speed transmission models, 2022+ Refresh models, and 2019+ Silverado/Sierra with 5.3L or 6.2L engines and 10-speed transmissions.
Use notes Running in full V8 mode may slightly increase engine temperature. Monitor accordingly. Unplug when the vehicle will be unused for an extended period.

Simple daily setup

Install the module only after confirming your vehicle is compatible. Once plugged into the OBD-II port, the module begins working without software steps. If you need factory behavior again, unplug it.

1. Confirm fitmentCheck year, engine, transmission, and refresh status before ordering.
2. Plug inInsert the module into the OBD-II port. No tune or wiring needed.
3. Remove anytimeUnplug to restore factory behavior or for extended storage.
AFM DFM disabler for GM V6 V8 cars and trucks OBD-II plug play

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FAQ

Will this AFM/DFM disabler tune my vehicle?

No. It is described as a plug-and-play OBD-II module with no tuning, no programming, and no permanent ECU modification.

Can I remove the module later?

Yes. The product notes say you can unplug it anytime to restore factory behavior. It should also be unplugged if the vehicle will be unused for an extended period.

Does it fit every GM V6 or V8 vehicle?

No. It is listed for most compatible GM V6/V8 vehicles with AFM or DFM, but there are important exclusions, including 10-speed transmission models, 2022+ Refresh models, and certain 2019+ Silverado/Sierra 5.3L or 6.2L 10-speed vehicles.

Is this recommended for modified vehicles?

No. The existing product notes say it is not recommended for modified vehicles.

Can full-cylinder operation affect engine temperature?

The product notes say running in full V8 mode may slightly increase engine temperature, so monitor accordingly.

Before checkout: confirm your vehicle year, engine, transmission, and refresh status. This AFM/DFM disabler is a removable OBD-II solution for compatible GM V6/V8 vehicles, not a universal fit for every GM model.

Q&A