TOP 10 Best AFM Disablers in 2023 (Complete Review with Buying Guide)

Are you having issues with the AFM-indulged system? Looking to deactivate it to get full-fledged control of your vehicle? Then you have come to the right place. We go deeper to come up with a review on “Best AFM Disabler.” The article encompasses some of the best AFM disablers available in the market. 

AFM, known as Active Fuel Management, is a modern technology from General Motors. Therefore, most of the GM vehicles come up with a factory-installed AFM system that instructs the engine to switch off half of the valves it has. As a result, you can save some fuel by turning off half of the valves which are not used. 

Though the AFM technology provides you with some great advantages, it has some demerits too. One of the negative sides is that you are devoid of having the full power of your engine all day long. So, you need an AFM disabler to ensure 100% control of your car.

Besides, you may need to return to the AFM system again. With a top-notch disabler, you are just one click away from deactivating the AFM and reversing it the same way when needed. 

Recommended!

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Editor’s Choice for Best AFM Disabler

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Top 10 Best AFM Disablers in Details

1. Range Technology Plug & Play Active Fuel Management Disabler 

Do you want to run your V6 or V8 cylinder in full mode and boost the fuel economy? Then look no further. You have come to the right place. This very AFM disabler from range technology is in the frontline to provide you with the service you seek for your vehicle.

In order to keep you stress-free, the Range technology AFM disabler is a “plug-in and ready-to-go” type of tool. You don’t need to bother about help from any professional mechanics. All you need to do is to plug this device into your onboard OBD-2 port and leave the rest to it. It will proficiently give you the power and control you need in any situation.

In order to keep aside reprogramming the factory ECU, the engineers from Range Technology go deeper to come up with tailored technology. Therefore, you are free from any factory warranty headaches and blessed with 100% full-power delivery around the clock.

Moreover, if you want to get back to factory settings, you just need to unplug the AFM disabler. In this easy way, you can activate the AFM disabler again.

This Range AFM disabler works great on V6 and V8 active management vehicles such as cars, trucks, and SUVs. It is recommended to check whether your vehicle fits in the device or not. 

Key Features

• Comes with patented technology to disable AFM
• Ensures V-6 or V-8 operates in full swing
• Doesn’t reprogram the Factory ECU

The Good

• The easiest way to plug-in 
• Leaves no trace when uninstalled
• Ensures 100% power all the time
• Enhance the fuel economy
• Prevents costly repairs
• Pennyworth

The Bad

• Vehicle-specific device

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2. Active Fuel Management Disable Device RA003

Are you looking for an Active Fuel Management Disable device for your V8 and V6 engine? This AFM disabler from the renowned brand GreatUs might be a great option for you. Built with a classic black design, this AFM disabler device is a great fit for your General Motors V-8 and V-6 engines. 

To provide its customers with easy-going installation, the company takes necessary measures and ensures only “plug-in and ready-to-go” type AFM disabler. For this reason, you only head for putting into your onboard OBD-2 port.

Then, this small yet stylish device will successfully turn off Active Fuel Management. However, it will leave no traces of modifications when you need to get back to the AFM setting.

Most importantly, while installing the AFM delete programmer from GreatUs company, it does not reprogram the factory ECU. Besides, when plugged in, the AFM disabler takes a few seconds to disable the 4-cylinder mode on all General Motors AFM vehicles. 

This stylish yet classic AFM disabler is manufactured for some specific brands of vehicles. The best thing is that the company provides you with a catalog, including supported make, models, and year. So, you can check your vehicle’s compatibility and leave behind any not-supportable issues. 

Key Features

• Works out to keep the vehicle in V8 full-power mode
• Immediately disable 4-cylinder mode on all GM’s AFM
• Doesn’t reprogram the stock ECU program

The Good

• Ensures V8 engine in full-power
• It only a matter of seconds to install
• Great value for your money
• Stylish design
• Leaves no trace of mods when unplugged  
• Not that pricey compared to Range Technology

The Bad

• Some users come up with side effects

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3. Range Technology RA003R Plug & Play AFM/DFM Active Fuel Management Disabler (RED) 

Are you on the lookout for the best AFM/DFM disabler for General Motors Buick, Cadillac, Chevrolet, GMC, Isuzu, SAAB, Pontiac, Saturn & Suzuki? Congratulations! You have got some luck! In our article on Best AFM Disabler, we delve deeper to explore this amazing-looking AFM disabler from Range Technology.

In order to withstand shuddering or dropping cylinders, this AFM disabler works effectively. Besides, it ensures 100% power all the time in all types of situations, promoting fuel economy. 

Keeping the set-up a piece of cake, the engineer takes help from the company’s patented technology. Therefore, the plug-in is only a “go and play” sort of thing. To install the AFM disabler, you only need to plug in the device into your onboard port OBD-2, and the device will do the rest. When installed, the device will instantly function to terminate the Active Fuel Management system. 

Most importantly, the disabler doesn’t reprogram the stock ECU and leaves no trace of mods. Therefore, you can easily return to your factory setting at the time of unplugging. One thing you need to consider is that you need to remove the disabled if you don’t drive often. Otherwise, you may end up damaging your battery. 

Key Features

• Doesn’t reprogram the factory ECU while installed
• Comes in a RED-LED version
• Ensures full-throttle engine without factory warranty concerns
• Doesn’t modify the stock ECU

The Good

• 100% power delivery all the time regardless of the driving
• Installation is quite easy
• Worth your every penny
• Enhance drivability
• Improves fuel economy

The Bad

• May lose workability after some weeks

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4. Diablosport S1000 Sprint Car Fuel Management Module

You definitely heard the name of DiabloSport. Right? Then how about getting an AFM disabler from this brand? DiabloSport is committed to lending you a hand to provide you with the top-notch AFM disabler for your car. It ensures to make your car stays in V-8 mode all day long.

To get you out of the lag problem, this device is specially manufactured for cars like Chevy. Besides, it works great to reduce extra fuel consumption. The device is a great fit for all the GM cars developed after 2005 having the AFM feature. 

This outstanding device from DiabloSport is another “plug-in and ready to go” type AFM disabler. Therefore, you don’t need to look for any professional hand while installing it. All you need to do is to put the disabler into the OBD-2 port, and the device will effectively put an end to the AFM mode. 

While disabling the AFM or DFM system of your car, it doesn’t reprogram or reflash the factory ECU program. The important aspect is it doesn’t leave any traces of modifications. It has a great advantage. You just unplug the device, and spontaneously the car gets back to its previous AFM system. Besides, while claiming the warranty, no one can get that you have terminated the AFM mode before. 

Key Features

• Specially manufactured for cars manufactured after 2005
• Go and play type AFM disabler
• Doesn’t reprogram the Factory ECU
• Works to bypass the computer-controlled fuel management system

The Good

• Expel engine lag
• Effectively disable the AFM when plugged-in
• Improve the performance of your car
• A great value for the money
• Super easy to install

The Bad

• May not work efficiently while disabling the DFM system

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5. Range Technology Plug & Play AFM/DFM Active Fuel Management Disabler for GM Vehicles RA003G (Green)

Are you looking for a compatible and functional device to operate your V6 and V8 engine at their full power? Then consider this Green AFM disabler from Range Technology. It is another plug-in and ready-to-go type of disabler that doesn’t demand any mechanical or professional installation skills.

The installation is quite easy. When you plug in the disabler onto your onboard OBD-2 port, your vehicle will immediately expel the Active or Dynamic Fuel Management system. It doesn’t reprogram the factory ECU while turning into AFM/DFM disabling mode.

Besides, it leaves no traces of modifications and doesn’t void the warranty. When unplugged, the device makes your car return to its previous version. 

The great thing about this device is that it will make your engine run in full swing. Therefore, you can have a comfortable driving experience irrespective of the driving condition. Besides, it saves you some bucks, preventing the lifter from being broken continuously.

It is wise to check your vehicle’s compatibility because the device works effectively on General Motors’ V6 and V8 GM active or dynamic fuel management vehicles, including cars, trucks, and SUVs.  

Key Features

• Range Technology’s patented technology device
• Doesn’t modify the stock ECU program
• Run in full-cylinder in a matter of seconds
• Maintains legal emissions standards
• Comes in Green Color

The Good

• Enhance the fuel economy
• Works great on disabling both AFM and DFM
• Saves you money by fixing the lifter
• Doesn’t affect the factory warranty
• Improves drivability

The Bad

• A little pricey in comparison with other AFM disablers

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6. Active Fuel Management Disable Device RA003 Fit for GM V8 & V6 engine

This tool is another top-notch active fuel management that disables the device for the V8 & V6 engine of General Motors. It comes with ensuring great compatibility for a wide range of vehicles. Interestingly, it provides you with a catalog. By going through it, you can easily inspect your vehicle’s suitability. 

Making the installation easy-peasy, the engineers work hard and come up with a go-and-play type AFM disabler. It easily fits in your car if it is on the list of compatibility. You just need to plug the device into the onboard OBD-2 port, and you will see that the device deactivates the AFM system in only a few seconds. 

While turning off the active fuel management program, the device doesn’t modify or reprogram the factory stock ECU. Besides, it doesn’t leave any traces of mods behind, not making the warranty null and void. 

When activated, this AFM disabler makes sure 100% power of the engine is in V8 mode. Plus, it disables the 4-cylinder mode on all GM active fuel management vehicles. Besides, the device saves your extreme fuel costs withstanding extra fuel consumption. Most importantly, it smoothens your driving in all types of conditions.   

Key Features

• Ensures full-throttle power on V8 mode
• Offers a great match for GM V8 and V6 engine 
• Doesn’t reprogram or reflash the stock ECU program

The Good

• Ensures maximum power on V8 and V6 engine 
• Doesn’t tamper with the stock ECU
• Enhance the drivability in any conditions
• Boost off the fuel economy
• Durable and affordable at the same time

The Bad

• A reviewer from Amazon suggests it may affect the computer system

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7. Foxwell NT301 OBD2 Scanner Professional Mechanic Tool for Check Engine Light 

Are you looking forward to ensuring global compatibility for a significant number of cars, light trucks, SUVs, and 12V types of diesel? This device is a top-ranked AFM disabler. When you install this fantastic tool from Foxwell, you will love to drive your vehicle regardless of the conditions. It will help you fix up any problem that you may notice while driving.

This top-notch and high-tech device comes with an OBD-2 port. Therefore, when plugged in, you have access to a lot of tasks such as switching off the CEL, indicating Bad Oxygen sensors, reading DTCs sensors, resetting the monitor, reading living data, and many more.

As a result, you get the benefits of lots of programs apart from deactivating the AFM system. Most importantly, it reduces fuel consumption to a great extent.

Though it offers many functions, it is super easy to operate. You just have to plug the device into the OBD-2 port. Then you will get the necessary information displayed on the 2.8” screen. This small monitor will help you get accurate graphs. Therefore, you can get precise readings all the time and prevent any malfunctions.

With the help of this device, you can also do emission tests, and you can get accurate knowledge about the condition of your vehicles. Aside from the monitor, it has some buttons too to increase usability. Besides, to let you know the readiness status, Foxwell goes further to add three red-yellow-green LED signals and a built-in speaker. 

The device doesn’t need any battery. For charging, you just need to put it into the 16-pin DLC directly. Moreover, the tool is ergonomic so that you can easily install and deactivate it whenever you need it. 

Key Features

• Comes with a lot of functions to monitor your vehicle
• A wide range of compatibility for the vehicles having OBD-2 port 
• Coming with 2.8 inches monitor and 9 buttons 
• LED signals and a built-in speaker to let you know the status
• Works to ensure precise graphs

The Good

• Provides you with the top-end functions 
• Effectively show the readings
• No battery is required to charge
• Pull off emission test
• Diagnose any problem impressively
• Ergonomic handling 
• An excellent value for the money

The Bad

• The user interface may not intuitive 

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8. Range Technology AFM Disabler (Blue) 

This is another great device to disable the active fuel management system of your vehicle perfectly. This Range AFM disabler makes your V6 and V8 operate full-throttle around the clock. Plus, the device saves the active fuel management system from dropping cylinders. 

To keep you cool and relaxed, the device is super easy to install. All you have to do is plug the tool into your onboard OBD-2 port. Then you will see the difference. When plugged in, it immediately deactivates the AFM function and lets your engine run in full-power V8 mode. 

Range Technology leaves a signature mark in this field by inventing its own patented technology. With the help of this technology, the engineers come up with this very high-value disabler. 

When you install the device and deactivate the AFM mode, it doesn’t reprogram or modify any factory ECU settings. Moreover, it doesn’t leave any traces when you unplug the device. As a result, it doesn’t alter or change the factory-programmed ECU. Besides, it doesn’t make the factory warranty void. 

The best part is it improves your drivability and promotes fuel economy. When installing this device, you will be one click away from ensuring the best performance out of your vehicle. 

Key Features 

• Comes in stylish blue color
• Built with Range’s patented technology 
• Doesn’t make changes to the Stock ECU
• Comes in a blue color variation

The Good

• Turn off AFM immediately
• Enhance the drivability
• Doesn’t void the warranty
• Worth every penny
• Unique technology

The Bad

• Too expensive

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9. SKU, Range, GM, AFM Disabler, Blue 

If you are in love with Range Technology, then feel free to consider this device. In collaboration with Range’s unique patented technology, the developers build this AFM disabler to boost your smooth driving. Using this device lets you take on full control of your engine. In effect, you can take pleasure in your driving in every situation.

Most of us are afraid of installing any kind of technology because of lacking confidence. Besides, the installation is not trouble-free for some technology. Keeping that in mind, Range Technology ventures to let your concerns go away when installing.

You can easily gear it up without any prior knowledge. You only need to plug in the disabler into your onboard OBD-2 port. Then the device will be in effect in a matter of seconds. It will immediately demobilize the AFM system, letting your V8 engine run in full-cylinder mode all the time. 

In most cases, the AFM disabler ends up modifying the factory-programmed ECU. Therefore, your warranty may not be valid anymore. To get you out of this prime concern, this fab AFM disabler doesn’t reprogram or change the factory ECU.

Plus, if you want to get back to the previous AFM mode, then just unplug it. It will leave no traces of changes or modifications. As a result, your warranty doesn’t get null and void.   

Key Features

• Built with Range’s patented technology
• Keep the warranty intact
• Comes in stylish blue color
• Ergonomic to handle

The Good

• Does not re-modify or reflash the factory ECU
• Full of comfortable riding
• Improves fuel consumption
• Disable AFM mode instantly
• Worth your every penny

The Bad

• Expensive compared to other AFM disablers

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10. Range Technology Active Fuel Management Disable Device (Blue)

Here comes the most famous AFM disabler from Range Technology. Currently, this device is exploiting the market because of its top-ranked rating on Amazon. It has become the best seller on Amazon for quite a long time, and its popularity is ascending day by day. The device is superior when it comes to immediate response on the throttle.

For this reason, if you are on the search for the best AFM disabler for high-load scenarios, towing, or off-road driving, then place it on top of the list. So, let’s talk about this astounding device.

In order to keep your V8 engine from turning into 4-engine cylinder mode on all GM AFM, the device is at its best. It successfully prevents the active fuel management system from dropping cylinders.

As soon as you plug in the device, you will hear the exhilarating sound of the engine gearing up. With the device installed, you will only be one step away from getting the best out of your vehicle. 

Most amazingly, no professional hand or mechanical tool is required to install the device into your car. It is a go-and-play type of gazette that only needs to be plugged into the onboard diagnostic port. When geared up, the device efficiently disables the AFM system, letting you take control of the engine around the clock.

To keep you out of factory warranty concerns, the device is a gem. It doesn’t go for any kind of modifications of the stock ECU while deactivating the AFM program. Besides, it doesn’t leave any traces behind.

As a result, no one can figure out that you put the AFM in deactivation previously when you get back to the AFM mode. Therefore, your warranty doesn’t get invalid. So, you are getting the increased throttle, yet the warranty is kept intact. 

Key Features

• Keeping your vehicle in full-throttle V8 mode all around
• Deactivate 4-cylinder mode
• Specially made for heavy-load vehicles
• Doesn’t reprogram the factory ECU system

The Good

• 100% power all the time
• The easiest way of installation
• Keep the vehicle warranty intact
• Number one position on Amazon
• A great value for your money
• More responsive

The Bad

• May have issues with ECM

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Buying Guide About AFM Disabler

From your above reading, you have the insights that the AFM disabler can let you have full-time control of your vehicle. So, you need to be very careful while you are committed to purchasing one to demobilize the AFM feature.

In our article on the best AFM disabler, we try to enlist certain points that you must consider before going to get one for your vehicle. Overlooking these points may bring devastation down on your engine.

Responsiveness 

One of the distinguishing features of a top-notch AFM disabler is the response time. The AFM disabler from a tip-top company like Range Technology ensures to disable the AFM system in a matter of seconds. So, if your purchased AFM disabler starts working immediately when plugged in, you can be sure of its functionality.

On the contrary, if the disabler fails to be in effect quickly, something is wrong. In that case, your car hesitates to decide whether to stick to the full-engine mode or turn off half of the engine’s valves. As a result, you may end up having a depleted engine. So, be careful while choosing the right one.

Compatibility 

Whether the device is compatible with your vehicle or not, you cannot bypass it. You must check on your vehicle’s suitability with the disabler before heading to get one. 

As the AFM technology is GM’s invention, most of the vehicles from General Motors come with the AFM-enabled program. If your car is not on the GM’s compatibility list, then you must take the pain to inspect whether the device fits in or not. The best way to check the compatibility is to use your vehicle’s year and model. 

Compatibility with Tuners

Checking the disabler’s compatibility with the tuners is another crucial thing you need to look for. The reason is that a number of disablers don’t work with a tuner plugged into your vehicle. So, go for the tool that can be connected to the OBD-2 port alongside the tuners. 

Affecting Warranty 

The car you purchase comes with a factory warranty card. If you make any changes yourself, then the warranty gets null and void. Some disablers reprogram or modify the factory ECU system. As a result, your warranty gets invalid.

So, try to choose a disabler that reprograms or makes any modifications to the stock ECU. By doing so, the disabler doesn’t leave any traces, and you can get back to the AFM program again when needed without affecting the warranty.

Light Signal 

It is wise to purchase the AFM disabler having a light on its body. The light will give you the signal if the disabler works properly. If your vehicle doesn’t match the disabler you’ve plugged in, then you will not get any signal.

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FAQ on AFM Disabler 

Final Thoughts 

In the end, the AFM disabler is a must-have device if you love to drive in full-cylinder mode. Though the active fuel management system is a great invention of General Motors, some people don’t like to have it.

Therefore, we delve deeper to enlist some of the high-functioning AFM disablers in our best AFM disabler article. All you have to do is to pick the right one from our shortlist. 

Not only do we endeavor to come up with the best 10 AFM disablers. We thoroughly explore the all-in-all aspect of the device too. It may help you find the appropriate AFM disabler for your vehicle.

So, take some time to do research on your own in light of our information. Eventually, you will figure out the best compatible AFM disabler for your vehicle. Enjoy the journey!