AFM Disabler for GM V6 & V8 - Keeps Engines in Full Cylinder Mode

Our review of the Benowo AFM Disabler finds it to be a focused, practical solution for owners of GM V6 and V8 trucks and SUVs who want to eliminate cylinder deactivation without ECU reprogramming. The bottom line: this plug-in module is for drivers who experience engine shudder, lag or inconsistent power when the factory Active or Dynamic Fuel Management system switches between cylinder modes and who prefer a reversible, no-tools installation. It makes the engine run in full-cylinder mode continuously and installs in seconds via the OBD-II port.

Key Features

• Enhanced engine performance: Keeps V6 or V8 GM engines running in full-cylinder mode to avoid the power dips and lag associated with AFM/DFM switching.
• Wide vehicle compatibility: Works with many GM models including Silverado 1500, Sierra 1500, Camaro, Blazer, Suburban, Tahoe and Yukon across model years listed by the manufacturer.
• Safe and reversible: Does not reprogram the factory ECU so owners can unplug the module to restore original factory behavior and warranty confidence.
• Simple installation: Plugs into the OBD-II port with no tools or mechanical skill required, making it accessible for DIY users.
• Reduces wear and repairs: Eliminates frequent AFM/DFM lifter cycling to reduce mechanical wear and potential future repair costs.

Who It's For

This product is aimed at owners of GM V6 and V8 vehicles who regularly experience the side effects of cylinder deactivation: engine shudder, inconsistent acceleration and perceived lag. It is particularly useful for drivers who want a quick, reversible fix that does not involve ECU reflashing or complex mechanical changes.

It is less appropriate for drivers who prioritize factory fuel economy gains from AFM/DFM or for vehicles not listed among the compatible model years. Anyone uncertain about compatibility with their specific model year should verify fitment before purchase.

Pros & Cons

Pros

• Restores continuous full-cylinder operation for smoother throttle response and reduced lag.
• Easy OBD-II plug-in installation with no tools or ECU reprogramming required.
• Designed to be reversible by simply unplugging the module, preserving factory settings.
• Reported to improve on-highway smoothness and, in some cases, fuel usage during steady-state driving.

Cons

• Disables AFM/DFM fuel-saving behavior, so drivers may lose the factory fuel economy improvements in some conditions.
• Compatibility is broad but not universal; buyers should confirm their model year is supported.

Specifications

Product	AFM Disabler module
Compatible vehicles	GM V6 and V8 models (examples: 2007-2022 Silverado 1500, 2010-2024 Camaro, 2020-2022 Blazer, 2007-2020 Suburban/Tahoe/Yukon)
Installation	Plug into OBD-II port, no tools required
Effect	Prevents Active/Dynamic Fuel Management cylinder deactivation
Reversibility	Unplug to restore factory ECU behavior
Design origin	Designed in Massachusetts, USA

Our Verdict

The Benowo AFM Disabler is a practical, low-effort fix for GM owners bothered by the side effects of AFM/DFM cylinder deactivation. It delivers smooth, consistent power with easy installation and a fully reversible design, making it good value for drivers who prioritize drivability over the occasional fuel-saving mode.

Frequently Asked Questions

Will this void my factory warranty?
Because the module does not reprogram the factory ECU and is removable, it is designed to be reversible and should not permanently alter vehicle systems.

How is it installed?
Installation is plug-and-play: simply insert the module into the vehicle OBD-II port; no tools or mechanical skills are required.

Which vehicles does it support?
It supports a range of GM V6 and V8 models including Silverado 1500, Sierra 1500, Camaro, Blazer, Suburban, Tahoe and Yukon across the model years listed by the manufacturer; verify compatibility with your specific year.