12 Best AFM Disabler: Expert Recommended Guide [2022]

Before starting our article, we have a question for you. Do you own a vehicle with AFM feature? You might have noticed lower performance when towing or driving inside the city. This is due to optimizing the performance according to the driving situation by reducing the engine capacity to half using 4 cylinders out of 8

However, it is sometimes the complete opposite of what you want. You might need to unleash your vehicle’s power no matter what driving situation it is.

The best AFM disabler will give you the performance you want without compromising fuel efficiency. So, if you are interested in this item, check the below review you can find today.

Which is the best AFM disabler?

Range Technology AFM Disable Device is the best one as it is manufactured by a reliable brand. It is a high-quality product that needs no programming, thus, no voids for the car warranty.

Why Range Technology AFM Disable Device is considered the best?

This item from Range Technology is the best as it is suitable for all GM vehicles. Further, the installation process is very easy and it delivers immediate results. Also, the quality is unquestionable and it will live as long as your truck lives.

Comparison Table

 

Top 12 Best AFM Disabler Reviews

01. Range Technology AFM Disable Device: Best overall

 

 

Product Features

• Available in 2 colors
• No reprogramming for factory ECU
• Suitable for all GM AFM vehicles
• Delivers consistent power

Product Specifications

• Brand: Range Technology
• Model: ‎FBA_RA003
• Weight: ‎2.08 ounces
• Dimensions: NA

Product Description and Performance

Range Technology Active Fuel Management Disable Device will allow you to experience enhanced power utilizing all the engine cylinders even at light throttle. This will eventually lead to improving fuel economy while keeping the driving power you want to see from your GM vehicle.

As for installation, the device can be installed in minutes. You won’t need help with this task. Just plug into the diagnostic cable and it will work as required. Moreover, the AFM disabler works without reprogramming the factory ECU. So, it is just a plug-and-play device.

Once you install his device and start off your engine, you will feel the difference. Your vehicle will remain on the V8 mode all the time regardless of the driving situation. In addition, the increase in throttle response is coupled with constant power delivery.

All leads to a remarkable improvement in fuel economy. So, what you get is not only a better driving experience but also a saving in the cost of fuel and consistent repair of the engine.

One of the best scenarios where you will need the AFM disabler is when towing or driving at high speeds. With an AFM disabler, your car will put off the 4 cylinder mode. Thus, pushes forwards at a consistent rate with the complete power band of the car.

Similarly, if you drive a truck and carry heavy loads, you surely need an AFM disabler. For example, a Dodge Ram delivers its maximum capacity of power with an AFM disabler. Also, consider this device if you live in harsh weather conditions where it snows or rains all the time.

In fact, this AFM is a great addition to your truck in any situation. Although it seems a bit pricey than other similar products, the results and quality you get are worth it. Not to forget that you are backed with the manufacturer warranty.

“In brief, with the fast installation process and the satisfying outcome, Range Technology AFM Disable Device is certainly the best in the market today.”

Pros

• Easy installation
• Improves fuel economy
• Long lifespan
• Enhanced throttle response

Cons

• Comes at the pricey side

Recommendation

This item from Range Technology works very well on a wide range of vehicles. It will provide instant V8 mode all the time with no more V4 modes. So, if you are willing to invest more in something that lives, this is the best option.

02. S1000 DiabloSport Sprint AFM Module w/ Auto Start-Stop Disable: Best for highway driving

 

 

Product Features

• Suitable for Chevy and other GM vehicles
• Auto on and off
• Full capacity power band
• Lightweight item

Product Specifications

• Brand: DiabloSport
• Model: ‎S1000
• Weight: ‎0.81 ounces
• Dimensions: NA

Product Description and Performance

Whether you own a Chevy vehicle or any other GM vehicles that has an AFM mechanism, this disabler will work perfectly on both. To stop the AFM lag that annoys most GM and Chevy drivers, just install the S1000 DiabloSport AFM disabler.

When you plug in this item, your vehicle will not only stop shifting to the V4 mode but also will experience a smoother driving experience. The device is capable of providing better throttle response and you will drive better on and off roads.

When it comes to price, the product is also on the pricey side. It comes nearly at the same price as the previous one. However, the quality and outcome are superior. Expect an instant change in the throttle and power when you install this AFM disabler.

When you plug this disabler into the vehicle’s OBD-II port, you will see the red power light flashing. This means the AFM disabler is on and your car is on the V8 mode.

Moving to the fuel economy, the disabler does improve the fuel economy. Yet, the difference is only significant if you drive at speeds. In other words, you won’t see a big difference in gas mileage when driving at normal speeds inside the city.

However, we don’t consider it a defect in the product as you already get the consistent power and throttle response you need from an AFM disabler. Also, if you use your vehicle a lot on highways, you will get the improved gas mileage you need.

“If you are worried about whether this item will damage your battery or not, rest assured it won’t. The S1000 DiabloSport is a tested product and many drivers already tried this AFM disabler with no issues for the battery.”

Pros

• Installs easily
• Smooth driving experience
• Doesn’t damage the battery

Cons

• Better fuel economy on highways only
• A bit expensive

Recommendation

If you drive on highways more than inside the city, you will love this AFM disabler a lot. The disabler will give you all the needed throttle response and smooth driving in addition to better fuel economy. However, it is still a good product for all driving situations as well.

03. Range Technology RA003R Plug & Play AFM/DFM: Best for distinguishable design

 

 

Product Features

• Suitable for many devices
• Very Lightweight
• Red color
• No programming required

Product Specifications

• Brand: Range Technology
• Model: ‎‎SB-122AMG
• Weight: ‎0.3 ounces
• Dimensions: 4 x 4 x 1 inches

Product Description and Performance

We have several products from Range Technology on this list, so, you can conclude that it is one of the best brands for AFM disablers. If you own a GM, Chevrolet, Cadillac, or Isuzu, this Range Technology device will work for any of them. Besides, it fits many other vehicles and will completely stop the V4 downshifting most car drivers hate.

Like all Range Technology products we have on our list, this is a plug-and-play device. It means you plug in the device and it instantly operates. The result you will get is the elimination of the AFM feature as long as the device is plugged into your onboard OBD-II port.

To return back to the factory settings, just do the opposite and unplug the device. However, it is always recommended to stay in the AFM disabling mode to get 100% power all the time.

We know many people might be hesitant to buy such devices. They are too good to be true as most truck owners believe performance upgrades need tuning and reprogramming for the car. However, this one is actually true and won’t need any changes in the factory settings.

“Once plugged in, you will get an immediately improved acceleration and towing. Moreover, you won’t experience any battery drainage as other AFM disablers may result in.”

On the aesthetic side, this AFM disabler has a cool red light led that keeps shining when the disabler is on. It differentiates your disabler from the others with traditional flashing lights. Although this has nothing to do with functionality, it is worth mentioning as Range Technology has the same device with different colors, so, you can choose.

Pros

• Delivers 100% power at any driving speed
• No battery drainage
• Plug and play design

Cons

• Gas improvement on highways only

Recommendation

To drive with no more shuddering or dropping cylinders, just invest in a good-quality AFM disabler from a reliable brand name. No worries then about the power band your car will reach when driving or towing at high or low speeds.

04. DiabloSport 8245 inTune i3 Platinum Programmer: Best for a wide range of features

 

 

Product Features

• Has a screen and touchpad
• Custom tunes
• AFM and ESP disabler
• Speedometer calibration

Product Specifications

• Brand: DiabloSport
• Model: ‎ 8245 i3
• Weight: ‎6.7 ounces
• Dimensions: NA

Product Description and Performance

Another item from DiabloSport coming at a higher price but with upgraded performance. The DiabloSport 8245 inTune i3 is a customizable tuner and AFM disabler that works on most GM vehicles except hybrid or E-assist models.

The product has a screen which is something you won’t find at all AFM disablers. This screen is important as you can see real-time changes and make sure that you installed the product in the right way.

Speaking of installation, it needs a little change in the software. So, it is better to follow the instructions precisely or get the help of someone else to get this product installed in your car.

What we love most about this item from DiabloSport is that it is not only an AFM disabler. In fact, it is packed with features as calibrating the speedometer for modifications as tire size change or gear ratio. Also, it enables torque management adjustment and mileage booster tune.

As for the significant features, you will notice, the device will improve the fuel economy as well as the horsepower and throttle response. Note that if your driving habits are a bit aggressive, you might not reach the enhanced fuel economy you expect.

One important note here is that you need to update the software constantly. This process won’t take a long time, just minutes but it is essential to make sure the device works properly. Further, the device is able to hold up to 5 custom tunes. So, updates are important to deliver the full operation capacity with no lags or issues when tuning.

“Although it is one of the most expensive items on the list, it is one of the best devices at the same time. The reason why we think it is a top product is the multiple features it comes with. When you pay for such a device, you are investing in many advantages for your car not just AFM disabling.”

Pros

• Wide range of features
• Improves throttle, shifts, and torque
• Better gas mileage

Cons

• Needs programming to work

Recommendation

If you aren’t on a tight budget, you can invest in this product. Also, if you have modified your vehicle or plan on modifications, this will be a very good option that lasts for years of use. Take a thorough look at the features and see what this device can bring to your car.

05. Range Technology RA005B GM Start/Stop: Best for high quality

 

 

Product Features

• No reprogramming required
• Vehicle-specific fitment
• Instant improvement to the car functionality
• Blue color

Product Specifications

• Brand: Range Technology
• Model: ‎ RA005B
• Weight: ‎2.39 ounces
• Dimensions: 4 x 4 x 1 inches

Product Description and Performance

Another product from Range Technology with the same quality features but at a cheaper price. This model has a start/stop disabling feature which means your vehicle will start once you ignite the switch. No lagging to start or stop again as you will be working on the full powerband. So, the vehicle starts and stops immediately.

This feature is useful for emergency situations as well as normal driving conditions. Further, it provides better fuel consumption and prevents the engine from damage preventing any future repairs.

For installing the device, similar to the other Range Technology product, just plug it into the OBD-II port. This is the only step you need to get this start/stop feature disabled on your vehicle. In other words, no need for programming the vehicle or installing anything on your computer.

If you own a Chevy Traverse or other similar vehicles, theAFM disabler we have here is one of the best. Also, it is compatible with many vehicles but you must check before purchasing.

As expected from Range Technology products, the item we have here is a reliable one that lasts for years. It installs in seconds and remains within your car ignition system for years providing consistent power and functionality.

Moreover, there are no issues with your battery when using Range Technology AFM disabler. We all know that poor quality disablers may damage the battery. However, you won’t experience this with this AFM disabler.

Although you pay less than all other previous AFM disablers, the performance you get is nothing less. The throttle response is better, the gas mileage improves, and the power delivered to the vehicle is to the limits. What else would you need from an AFM disabler?

“One important notice here is that you need to unplug the device if you will park your vehicle for many days. Although it doesn’t damage the battery, it is better to unplug it when not in use to prevent draining.”

Pros

• High-quality product
• Improves throttle response
• Affordable price

Cons

• Not suitable for all vehicles
• Needs unplugging when not in use

Recommendation

Need the best performance from a guaranteed brand but you can’t pay a lot? This item from Range Technology is the perfect fit. However, we always recommend for any AFM disabler and all car aftermarket pieces to check the fitment first. Even for items that are suitable with a wide range of vehicles, you need to check the specific model and if your car is hybrid or not.

06. SUPERCHIPS FLASHPAQ F5 IN-CAB TUNER: Best for tuning levels

 

 

Product Features

• User-friendly
• High definition screen
• Different pre-set tuning
• Compatible with many vehicles

Product Specifications

• Brand: Southwest Speed
• Model: ‎SPC-2845
• Weight: ‎11.2 ounces
• Dimensions: NA

Product Description and Performance

Superchips has different tuners for different vehicles. So, when you choose this product, make sure it is compatible with your vehicle.

Similar to the other product, it needs programming to work on your vehicle. So, it is not a plug-and-play product like other AFM disablers. However, the time takes taken to program this tuner is worth it. The outcome you get is great compared to the price or effort needed to get the device installed in your car.

When you connect the device to your computer, you will discover that it has several tunes according to the driving speed and GM vehicle. The device can work properly with Chevy Silverado, GMC Sierra, and Camaro. So, most GM and Chevy owners are covered.

Also, the tunes are suitable for heavy towing and constant speed driving. You have got economy, towing, daily driving, and extreme tuning options. This depends on your driving habits. The end result will improve the fuel efficiency in any case.

Other features include preventing downshifting while moving on inclines and slopes. Also, it includes a speedometer calibration feature designed to recalibrate modified trucks. Further, it is compatible with most performance modifications and upgrades. So, it is a device made to last as long as you own the truck or vehicle.

As for usability, it features a high-definition screen to be able to read diagnostic information properly. Also, the device is very user-friendly and easy to use despite the programing it needs.

“Similar to all AFM disablers with programming feature, it needs consistent updating to get the most out of the device. If you worry about the memory limit, this device has an increased memory more than other previous models, so, you will never run out of memory needed for updates.”

Pros

• Speed & rev limiters controller
• Noticeable improved gas mileage
• Large memory capacity

Cons

• Needs programming and consistent updating

Recommendation

The best thing about Superchips tuners is that they have numerous features along with the AFM controller. You can adjust the speed and rev limiters as well as the tune for different driving conditions. So, with this device, you will experience a completely new driving experience and notice the difference in fuel consumption.

07. SUPERCHIPS FLASHCAL F5 IN-CAB TUNER JK Wrangler: Best for Jeep Wrangler

 

 

Product Features

• For Jeep Wrangler
• Speedometer recalibration
• Has a screen
• Accessory delay options

Product Specifications

• Brand: Southwest Speed
• Model: ‎ SPC-3571
• Weight: 10.5 ounces

Product Description and Performance

Here is a vehicle-specific AFM disabler from Southwest Speed. The Superchips Flashcal F5 In-Cab Tuner is compatible with Jeep Wrangler models from 2007 to 2018 providing the expected outcome you want to get from any AFM disabler.

If you own one of these models and you have added any modifications to the car, you will definitely need this device to recalibrate the speedometer and ensure the truck runs smoothly.

Moreover, the truck will become more stable on the road. Also, just like any high-quality AFM disabler, this device will enhance the throttle response a lot. Not to forget that it features a screen to give instant indications of the tuned speed, throttle, and all other modifications.

Moving to installation, this is one of the easiest installation processes you will find. It just connects to the ignition system of the car and you have the hand-held device to recalibrate the speed. The instructions are very easy to understand and follow and you won’t need someone else to get this device installed in your Jeep Wrangler.

Although this doesn’t work as the traditional AFM disablers you know for other GM vehicles, it delivers the same outcome. Your vehicle will run on the maximum power band and the throttle response is the best. Even if you have any modifications on the truck, you will get the same outcome you need.

Further, the fuel consumption experience a slight difference with this device. You may notice a slight improvement in the gas mileage. Drivers who modified their Jeep truck will notice this improvement more than others as the modifications usually decrease the gas mileage.

“Still hesitated? So, you might need to see some real-life experiences with this product. Why not check the reviews of Superchips Flashca on Jeep Wrangler forums to see how it worked with other Jeep Wrangler owners?”

Pros

• Improves gas mileage
• Stabilize the car
• Hand-held device with a screen

Cons

• Suitable for specific vehicles only

Recommendation

Whenever you feel your Jeep is slow to respond and it is not delivering the maximum power it is supposed to, ensure that it needs a speedometer recalibration. This device can return back the lost power and provides the shifting you need.

08. 7202 DiabloSport Predator 2:  Best for a variety of performance upgrades

 

 

Product Features

• Built-in performance tunes
• Suitable for many vehicles
• Improves towing, HP, and torque
• May require programing

Product Specifications

• Brand: DiabloSport
• Model: 7202
• Weight: ‎1.19 pounds
• Dimensions: NA

Product Description and Performance

The DiabloSport Predator 2 is one of the best devices you will ever find for your vehicles. It is an ultimate performance upgrader with a full package of upgrades related to throttle, horsepower, and torque.

Since we are more interested in AFM disabler devices, we ensure that this device will enable you to control the AFM. So, you can disable AFM completely to enjoy 100% of the power band of your vehicle.

Whether you drive a GMC Sierra, a Chevy Silverado, or any other GM vehicle, the Diablo device will be compatible with your vehicle. However, it doesn’t work with E-assist or hybrid cars.

The Predator is a full package. It will enhance the performance including the towing abilities and throttle response. At the same time, it comes with different performance tunes. These tunes are designed for different engines like 5.3L, 6.0L, 6.2L, etc. Thus, you need to check your vehicle fitment before purchasing this device.

When you choose one of these tunes according to your car, you will gain much horsepower. Generally, the HP can reach 25ft/lbs. of torque. This is a great enhancement considering it is a plug-in device with no reprogramming required.

Apart from this, if you modify your vehicle with larger tire size, you have other adjustable options. But these options as gear ratio or so need reprogramming. So, it depends on your needs.

“The device is packed with features rather than the AFM disabler. You will pay more than what you will normally pay for a single AFM disabler but you will get additional features. So, it is a winning bargain in all cases.”

Pros

• Fixes throttle response
• Eliminates lagging
• Increases HP

Cons

• Will void warranty

Recommendation

The device is not only an AFM disabler, however, it installs easily. Yet, you still have to download a software program if you intend to recalibrate or modify any of your vehicle features. Tuning is known to void the warranty, so, don’t buy this unless you are okay with voiding the warranty of your car or you are not within the warranty period.

‎09. Salangid RA003 AFM Disable Device: Best for V6 engines

 

 

Product Features

• Compatible with V6 and V8 engines
• Stops downshifting
• Vehicle-specific
• No programming required

Product Specifications

• Brand: ‎Salangi
• Model: RA003
• Weight: 1.58 ounces
• Dimensions: 3.2 x 2.5 x 2.1 inches

Product Description and Performance

If you have a V6 engine, this device is the best product you can get. The RA003 model is a good alternative for Range Technology devices if you are on a tight budget. It comes at a fraction of the price.

Now we cannot claim that you will get the same exact performance, however, you still get a good AFM disabler that works for both V8 and V6 engines. One of its significant features is that it is easy to use and install as well.

Furthermore, the device won’t need any reprogramming or modifications to work. Once you plug it into the ignition system of the car, light flashes sequentially, and then one light lamp remains on indicating the device is operating well. Once you power off the car, make sure that you unplug the device to prevent battery drainage.

As mentioned before, you need to make sure that your car is compatible with this device. This can be checked through the website you purchase it from or by calling the seller.

Moving to the performance outcomes, you will notice better throttle response and no more downshifting. Moreover, you don’t need to connect it to any other device before using it. You just plug it in and get the vehicle speed to match your driving style.

“What we especially love about devices like this one is that they don’t void the warranty of the car or any of its parts. Since it doesn’t need programming, you won’t adjust any of your car components. So, your warranty remains as it is but you get the AFM disabled.”

Pros

• Cheap price
• Enhanced throttle response
• Better fuel efficiency

Cons

• Less lifespan

Recommendation

Although these kinds of AFM disablers don’t come with many features like other more expensive ones, you pay for what you get. This device won’t cost you as much as other multipurpose ones but they are just enough to only stop the AFM. So, if you are searching for an affordable device that is easy to use and with a reliable AFM disabling feature, this one is for you.

10. Qzucar Active Fuel Management Disable Device: Best for price

 

 

Product Features

• Compatible with many vehicles
• Provides smoother performance
• No programming required
• Instant performance upgrades

Product Specifications

• Brand: ‎‎Qzucar
• Model: B08LL8BB8G
• Weight: 1.76 ounces
• Dimensions: 3.35 x 3.07 x 1.73 inches

Product Description and Performance

Another budget-friendly option is to replace Range Technology and Superchips multipurpose device. This AFM disabler is unbeatable in terms of price. Yet, it is also packed with other advantages.

The installation process is similar to the previous device and other Range Technology AFM disablers that require no programming. This is very important if you want to keep the warranty. Also, it is easier and takes less time. Moreover, you won’t need to update the device every now and then.

On the other side, you only get AFM disabling with this item. AFM disabling means preventing downshifting and keeping the vehicle on V8 mode. This eventually leads to full power whenever you are driving and better throttle response but no other tuning features.

Once the device is installed, you will feel the performance upgrades. Whenever you want to return back to the previous AFM settings, just unplug the device. Don’t forget to stop the battery before installation to prevent any negative impacts on the battery.

If you own a Chevy Silverado or a Corvette, this will work perfectly for both. Similarly, it will work on most GM vehicles and other brands as well. But needless to say, you always have to check if it fits.

Although it is a cheap product, we don’t consider it as a low-quality one. In fact, you will get nearly the same results you get with more expensive products. However, no significant improvement in the gas mileage was noticed with this device. So, it is different from other low-quality products you can find around.

In short, you will get rid of the down cylinder shift and enjoy a full power band at a cheaper price with the Qzucar device. Yet, don’t expect much for the gas mileage. At the end, you are probably driving a truck which is not expected to save gas anyways.

Pros

• Affordable price
• Solves down cylinder problem at all
• Very easy installation

Cons

• No changes in gas mileage

Recommendation

If you want a perfect device just to stop the AFM, don’t think twice. Go for this if you don’t need any of the other features that come with pricier devices. This item will give your vehicle the support it needs and gives a consistent power delivery across the whole powerband.

11. SUPERCHIPS DASHPAQ in-CAB Tuner: Best for the highest performance

 

 

Product Features

• Different tuning adjustment
• Speedometer calibration
• Compatible with many vehicles
• Needs reprogramming

Product Specifications

• Brand: Southwest Speed
• Model: SPC-2060
• Weight: NA
• Dimensions: NA

Product Description and Performance

The Dashpaq tuner is for a wide range of vehicles rather than GM trucks. Also, it is suitable for several models from the same vehicle. If you find your vehicle among the list of vehicles this tuner can work with, don’t hesitate to give it a try. The device will also cover from 4.3L to 8.1L gas motors.

Despite being the most expensive item on the list, there are a couple of features that justify the price. Besides the AFM disabler, you have an in-cab monitor to check the engine properties constantly and know what needs repairing. For example, you can check the coolant and transmission temperature, the battery, and many other parameters.

Moreover, the device will impressively enhance the towing power. If you haul heavy loads or pull heavy objects, this device will serve you a lot. It optimizes the power to the best and improves fuel mileage a lot.

With a high-definition 2.4-inches screen, you will get the best display for the best user experience. Also, you have buttons to switch between the settings and controls of the device. It means you have more than one setting and several things you can do with this device.

One of the things you can achieve is the different tunes. With this device, you have 4 adjustment that ranges from economy to extreme performance. In addition, you can manage MPGs on a real-time basis.

One more thing you can do with this AFM disabler and tuner is the speedometer recalibration if you decided to change the tire size for your truck. So, as you can see, you are backed with an impressive device that delivers most of the performance adjustments you might think of.

“Although it is an expensive product, you will get many things in return for the price you pay. So, if you are willing to pay much for many features, consider this option from Superchips.”

Pros

• In-cab high definition screen
• Improves gas mileage
• High-quality item

Cons

• Very expensive
• Not many mounting options

Recommendation

The product is compatible with many vehicles including Hummer and Cadillac trucks besides many other vehicles. So, it covers a wide range of gas truck drivers. Besides, it has a good design that makes installation very easy although it needs programing and recalibration in most cases. In a nutshell, this product is suitable for those who expect the highest and don’t bother paying much.

12. 85350 Edge Evolution CS2: Best for custom tunes

 

 

Product Features

• Custom tuning adjustment options
• Programmer for GM vehicles
• Less shifting
• No towing problems

Product Specifications

• Brand: Edge Products
• Model: ‎85350
• Weight: 1.5 pounds
• Dimensions: NA

Product Description and Performance

The last item we have is Edge Production CS2. Similar to the previous device, it is a pricey one but with numerous features.

First of all, it works with GM vehicles. If you want to improve the throttle response or torque, you can use this device.

As for the man function of AFM disabling, the device allows for turning off the AFM feature for your GM vehicle. This results in the above features in addition to better fuel economy. Also, it has a significant enhancement in horsepower.

This device is the best programmer for your GM vehicle. It features a windshield mount to easily monitor the settings and parameters you set for your vehicle.

Speaking of the settings, you have many custom settings that you can adjust. For example, you can set your vehicle on the towing mode to get the power optimized for towing. Alternatively, you can set it to the daily driving mode for normal speed and throttle performance. Other modes include mileage saving and high-performance modes.

This item will be installed easily, and easier than other similar products that require programming. By adding it to any compatible vehicle you will instantly notice less shifting and better torque.

“To ensure you are receiving the performance you want, adjust the tuning options according to the driving situation. The device is very easy to use, so, you shouldn’t have problems with these switches.”

Pros

• Very easy installation
• Improves gas mileage
• Windshield mount
• Increases horsepower

Cons

• Comes at the pricey side

Recommendation

Since you are here, you surely want to eliminate the shuddering effect that results from switching between V8 and V4 cylinders. However, if you need other performance upgrades along with this main purpose, consider this item. You will also see what your engine is doing through the screen, thus, it is a full options device.

Buying Guide

AFM is not a defect in GM or other vehicles. However, it is sometimes annoying to not be able to control this feature in your car. So, if you want to go with 100% power, you need one of the above devices to disable the AFM.

Before deciding which product to buy, here are some considerations you need to put in mind to get the best one.

Price

The prices come in the first place because it will actually determine where to go. Usually, AFM disablers are not very expensive additions to the car. Also, most high-quality items are easy to use and you won’t need to pay any fees to get them installed in your car. So, it is only the price of the item and maybe the shipping price.

Decide which price range you are willing to pay to get an AFM disabler. Later, search in this price range to find the product that fits your needs.

Mostly, the items which come at a very expensive price are not AFM disablers only. They have other features which you might or might not need. So, if you are on a tight budget, consider an AFM disabler only.

One last thing to mention here is that you shouldn’t go for the lowest-priced items. These will eventually fail and you have to replace them or they won’t deliver the performance you want at all.

Features

What is the point of buying the most expensive items without getting the performance you want? Before purchasing, read the features of the item you want to buy very well.

For example, you might want custom tuning adjustments or a speed limit controller. Hence, take a look at the features each item provides to figure out if it meets your expectations or not.

Also, don’t forget to read the reviews, pros, and cons of each item. No item will be 100% perfect with no cons but it is a matter of priorities. The most important thing is to have your AFM disabled with no chances of getting it on suddenly while driving.

Installation

The products above offer a variety of options between plug-and-play products or others that need reprogramming.

In any case, make sure the item you purchased is easy to use and install as you may want to enable and disable the AFM system frequently. It is better to go for the options which don’t require several steps for installation.

Even if you choose an option that needs reprogramming and consistent software updates, make sure you read the instructions on their website or wherever before purchasing. This is to make sure that you can follow the instructions on your own and that you won’t find a problem installing your device.

Note that whenever you reprogram your truck or any vehicle, you are out of the warranty. So, don’t purchase any programmed devices if you want to keep your warranty.

Fitment

Needless to say, the AFM disabler should be compatible with your vehicle. However, it is not enough to know that the device is compatible with GM vehicles or Chevy trucks. You need to check the specific model and manufacturing year of your vehicle as well.

Luckily, most brands offer several options from the same device to cover almost all vehicles with the AFM feature. So, you will surely find the perfect fit but you need to do some research.

FAQs

What is an AFM disabler?

AFM is short for Active Fuel Management which is a system that is originally made to reduce fuel consumption. The system simply closes 4 of the engine cylinders when the driver is in a situation of normal driving that doesn’t need the full power capacity.

However, in many situations, drivers would like to go with the full power band even inside the city. This is not about the speed but for the towing and throttle response. So, the AFM disabler is designed to shut off this system, hence, the car will go at full power capacity all the time.

At the same time, the AFM disabler won’t decrease fuel efficiency. Instead, it should optimize fuel usage in a way that keeps fuel consumption efficient but doesn’t downgrade the car’s performance.

How to maintain the AFM disabler?

Maintenance doesn’t need any special requirements. It is similar to maintaining any other car aftermarket pieces, you just have to check every now and then that everything is working properly. For example, check the oil pump and other engine parts.

Also, pay close attention to fuel consumption, Some AFM disablers won’t improve the fuel efficiency but at least they shouldn’t downgrade it.

What is the difference between tuner and AFM disabler?

Both do the same thing you want which is disabling the AFM system. However, tuners will reprogram your car software and delete the AFM completely. So, you aren’t backed by the car warranty anymore. On the other side, AFM disablers are just plug-and-play devices that work to serve their purpose when plugged in only.

Conclusion

AFM disablers are very beneficial even if you are only driving inside the city. With these devices, you will get the best towing, acceleration, and throttle response from your vehicle. Moreover, you won’t lose efficient fuel consumption. So, the item is worth investing in. If you don’t know where to start, this read is a comprehensive review of the AFM disabler devices you can find for most vehicles.