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Active Fuel Management: 7 Best AFM Disabler Reviews

Buying the afm disabler device can be quite challenging if you’re not knowledgeable about what features make a great one. You may have heard this before, disabling your truck’s AFM improves your truck’s engine’s performance.

It is another great way of saving yourself some money and time.

This article provides you with our top 7 recommendations of the best products currently available in the market.

So, depending on your vehicle model, brand, and budget, these are the most reliable AFM you can get.

What is the Best GM AFM Disabler?

Being one of the top performers in the fierce battle of auto dominance among other AFM aftermarket products of high quality, New Range technology AFM, a product of the Southwest Speed brand, trumps the rest brands in their own game.

We recommend New Range Technology for anyone aiming for the best due to quality features such as leaving no tweak trace when a user returns his vehicle to factory mode, delivering superior power and control, and not reprogramming a user’s factory ECU.

With a combination of features like this, the New Range AFM has positioned itself far top, which is a good reason you should give it a try today.

Don’t miss to check our an Amazing guide on how do you know that your vehicle has AFM system.

Top 7 Best AFM Disabler Reviews

01. New Range Technology – Top choice for performance


Highlighted Features

  • Weighs 3.32 ounces
  • Compatible with V6 and V8 GM motors
  • Patented technology
  • Built for cars, trucks, and SUVs

Want a disabler that effectively keeps your engine running in full cylinder mode at all times? Give New Range a try.

We picked this afm device as our best chevy afm disabler, considering how rare it is to find a disabler that can turn off a  vehicle’s AFM  without reconfiguring its factory ECU.

This is still a very rare technological feat in the AFM market, so this product is worth all the attention and props it’s currently getting from buyers.

Moreover, the disabler can keep you in full power as long as it’s turned on. You set its operation in full motion with just having to plug into your vehicle’s OBD II port. How simpler can it be?

Besides being known for not reprogramming a buyer’s factory ECU, New Range leaves no trace that any tuning was carried out on your vehicle.

It works in a simple fashion of tune in and tunes out. and you’re good to go.


  • Improved throttle response
  • Saves a good amount of oil
  • Brings a full V8 boost
  • Durable


  • A bit pricey

02. S1000 DiabloSport – Best option for calmer exhaust sound


Highlighted Features:

  • Lightweight (0.81 ounces)
  • Machined exterior
  • Compatible with GM vehicles 2005- 2019
  • Built for maximum power

If you’re facing a challenge of cylinder drop, your product is the Diablo S1000. Cylinder drops mean your car cylinder drops power abruptly, at unexpected times.

This consequently offers you less drive power, even when you need more. What Diablosport brings to a user-facing problem like this is stability.

In addition to that, your vehicle’s engine becomes more sensitive and responsive on installation.

Your driving experience becomes a lot better, as you no longer have to struggle with your engine picking up commands.

Installing the Diablosport immediately leaves a mark on your vehicle’s speed, as the pier also becomes significantly impacted.

Here is the juicy part of purchasing this product – It is common to have GMs with factory AFMs drone noisily, as the engine only uses four cylinders.

DiabloSport eliminates this unpleasant exhaust sound, replacing it with a calmer one. The product also comes with an on/off toggle, offering a user the option of customizing to taste.


  • Improved power
  • More responsive engine
  • Fixes cylinder drop
  • Solves the issue of misfiring


  • Disablers need disconnecting to pass emission tests.

03. Pedal Commander PC65 – Best choice for fierce acceleration


Highlighted Features:

  • Compatible with Chevrolet Silverado (2007-2018)
  • Weighs 10 ounces
  • Features sport and sport+ modes
  • Features Eco mode
  • Bluetooth supported

A product like Pedal Commander is perfect for users whose major concern is their vehicle’s acceleration and throttle response.

It is a workable solution to engines’ lack of power and lethargy. The disabler comes with a throttle response controller that removes response delays on vehicles that run on electronic gas pedals.

Being one of the most in-demand Chevy accessories in the market, as a Chevy Silverado user, you should be looking at maximizing your driving experience by giving this disabler a shot.

The good news is that the Pedal Commander is compatible with other aftermarket products you already may be using.

The disabler doesn’t use an OBD II port like many other disablers, allowing you to match it with your existing tune to customize your engine fully.

Guess what? The Pedal commander can also be operated using the user’s mobile phone.

Provided you have the iOS 10.0+ or Android 5.0+, your experience with the disabler just got better.

The amazing features of Pedal Commander seem inexhaustible, as it also comes with Eco mode that allows a user to maximize fuel economy, a City mode that provides a 1:1 pedal-to-throttle ratio, a sport mode for spirited drivers who love all the road action, and a sport+ mode that allows your vehicle accelerate like an airplane.

The installation also only takes about 15 minutes, as it is simply a matter of easy plug-and-play.

Are you wondering about its impact on your MPG and fuel economy? Your fuel economy sure goes up to an extra 20% with this product.


  • Easy installation
  • Supports mobile operation
  • Improved power and throttle response
  • Excellent user modes


  • Throttle response switches to limp mode after some time.

04. DiabloSport Predator 2 – Top option for adjustable programming


Highlighted Features:

  • Compatible with Chevrolet, Cadillac, GMC, and hummer
  • HD 2.8″ color screen
  • Weighs 11.7 ounces
  • Supports USB
  • Uses speedometer correction

Diablo predator two is built for Chevy, GMC hummer, or anything else that looks like them, delivering a notable boost to a buyer’s vehicle.

Installing this disable, you notice about a 30 horsepower increase in engine power and about 30ft/lbs of torque.

Installation is also pretty easy, as it is plug-and-play. This disabler also comes with a program for four and can be installed on 3L, 4.8L, 5.3L, 6.0L, 6.2L, and 8.1L engines of GM trucks and SUVs.

Did we tick any of your engines here? Get on board and enjoy a wide range of flexible options the Predator 2 has to offer.

You can tweak certain features of your vehicle, of which one critical one is reprogramming your gear ratio, tire size, or completely removing the top speed limiter of your vehicle.

It also comes with custom tuning features and other powerful tuning options, all available to a buyer.


  • Boosts engine power
  • Better throttle response
  • Adjustable features for users
  • Enhanced torque


  • Scanty product review

05. Jet 15008 Performance Programmer – Best for engine peak efficiency


Highlighted Features:

  • Made in the USA
  • Weighs 9 ounces
  • Features built-in trouble code scanner
  • Comes with speedometer
  • Compatible with 2007 – 2011 GM trucks

For people with the usual driving style, looking at programming their vehicle to meet this pattern, we recommend the Jet 15008.

It simply offers you maximal control and autonomy over what you want your vehicle to sound like, run like, and act like.

More interestingly, a buyer can carry out performance programming using inexpensive regular octane fuel.

Alternatively, if a buyer can program his engine for premium fuels or mid-grade, unlocking optimal performance gains of the engine.

The tuning modes it comes with allow one to run the engine at peak efficiency, depending on the octane level used to enhance mileage.

You can also modify air and fuel ratios, shift firmness, ignition timing, and also adjust rev limiter settings.

Then lastly, the sweet spot of the programmer seems to be its built-in scan tool, which is able to read and clear trouble codes.

All you have to do is plug this into the vehicle’s diagnostic port; then, the installation software helps you affect changes.


  • User-friendly
  • Improved MPG
  • Extra horsepower gains
  • Less gear searching


  • Torque management is difficult to adjust

06. Foxwell NT301 OBD2 scanner – Disabler with best diagnostic tools


Highlighted Features:

  • OS is windows 7, 8 and 10
  • Lifelong free updates
  • Features Turn Off MIL
  • The diagnostic system is OBD2
  • Extremely lightweight (1.01 ounces)

The most captivating feature of Foxwell NT301 is how easily it reads and erases trouble codes.

It works hand-in-hand with a user’s engine ECU, enabling it to trigger an alarm response of the Check Engine light.

In essence, parts such as a user’s vehicle gas caps, sensors, ignition coils, spark plugs, and thermostats are all in the safe hands of Fowxwell disabler.

Installing Foxwell, you’re immediately relieved of worry about an issue that triggers your Check Engine Light.

This is because its built-in diagnostic tool would save you time and money from always having to run to the mechanic. Should like what you would want, right?

Well, there’s more. This programmer can read freeze frame data which notifies the user of his engine conditions like fuel pressure, fuel trim, and the coolant temperature of the engine.

It also comes with full OBD modes, which include mode 6 and mode 8.


  • Excellent scanning
  • Time-saving ability
  • Saves money
  • Design is user-friendly


  • A bit pricey

07. Innovative performance chip – Best for ease of installation


Highlighted Features:

  • Weighs 6.1 ounces
  • Compatible with Chevy Silverado 1500
  • Quick installation
  • HP boost

Looking for a Programmer that won’t drill a hole in your pocket yet offer you reasonably decent performance? Your best shot may be Innovative Performance Chip.

It not only boosts your hp by an additional 35, but you also stand to gain about extra 5 units of MPG for your vehicle’s fuel mileage.

We highly recommend the Innovative Performance Chip to buyers who wish to squeeze out their engine fuel economy and avoid high fuel prices.

It also boasts a user’s engine throttle response and takes less than 15 minutes to install. You don’t need expert experience to install the Innovative Performance Chip, as each pack comes with detailed pictorial instructions.

It also does void your warranty by modifying your engine’s emission systems.

The most exciting part of buying the programmer is that all performance chips used in it are built using a superior aluminum enclosure matched with a high-end anodized finish.


  • Improved gas mileage
  • Easy installation
  • Affordable
  • Saves money


  • Not durable

Shopping Guide On Best Active Fuel Management(AFM)

If you’re willing to unlock the potential of your engine without compromising or distorting other aspects, investing in an AM disabler is the best way to go.

AFM disables activating every of your engine’s cylinders, removing drones, and providing your car with more power.

The effects of this? Your engine consumes less fuel and oil. Before you buy one, here is what you must consider:


The AFM disabler you choose must be able to meet up with the features it advertises or boasts about.

Unconventionally, many manufacturers include features their products don’t have, luring you into buying a substandard disabler.

A good piece of advice is to stick with a known and reliable brand. Refer back to our top 10 best AFM disablers, and pick a product that resonates with your engine’s needs.


A very important factor to consider before buying an AFM disabler is price. They often feature various design materials, hence, varying prices.

Some AFM disablers are quite pricey, yet with excellent solutions, why some are affordable with mid-performance.

Others are complete rip-offs, which is one end you should be wary of.

You also need to be aware that while some offer amazingly reasonable prices, they are not great products and may not offer what you’re looking for.


It is always advisable to go for brands with an easy-to-install guide. If it happens to be your first time installing an AFM disabler, we recommend you opt for a brand whose product comes with instructions that’ll aid you in the installation process.

This is to ensure you don’t end up damaging the disabler in the installation process. Here is a guide on how to install an AFM disabler:

  • Check this YouTube video how to install Range Technology (AFM) Disabler

Read More Questions About AFM Device

01. What is an AFM disabler?

AFM disablers are small gadgets that plug into the diagnostic port of your vehicle.

They often have software that reprograms a user’s engine, allowing them to utilize the full cylinders at all times.

A good way to think of AFM is as a bypasser rather than as a disabler, as it, in operation, bypasses the active fuel management system.

The effect is that your engine wouldn’t drop cylinders abruptly and occasionally too. These are the benefits of not just using an AFM disabler but the best chevy afm disabler.

Your engine gets back its full power.

The major thing a disabler tries to do is to get a user’s engine back to optimal performance. How would it do this?

It simply will improve the power gains of the engine. Hence, the dripping of cylinders is taken care of.

Having more power means the pressure on a user’s car wheels is now lowered. More power also means more control. The risk of losing balance is hence minimized.

Reprogramming can be reversed.

A good AFM disabler does not necessarily impact the powertrain or system of a user’s vehicle. If you want your vehicle back to the factory function, all you have to do is take out the disabler.

The great thing about this is that it leaves no trace of being there before, as your engine returns to an unnoticeable default mode once again.

Assist vehicle engine

Once installed, the pressure put on your car to limit cylinder use is ousted. The implication of this is that your car can now run smoothly without having to work extra hard.

This disabler, in the long run, is cost-efficient, as you wouldn’t have to keep spending on maintaining the engine.

02. How do AFM disablers differ from AFM delete kits?

AFM disablers are necessary when an AFM lifter isn’t failing yet. Disablers often serve as preventive maintenance tools.

In cases where the AFM disabler is failing, an AFM delete kit is your best shot.

You should be aware, however, that in a case where a delete kit is installed already, but you don’t have access to a Programmer, a disabler is still a great choice.

To do this, the AFM solenoid pack needs to be left connected. This is to make sure that codes are thrown.

How AFM works

When the vehicle engine is low, it does the following:

  • Computer sends a signal of the situation to the LOMA
  • This opens the LOMA solenoid
  • Oil via the OFM towers then flows to the special lifters
  • The oil then collapses the plunger
  • The collapsed filters do not impact the pushrods, hence leaving the valves closed. Since air is trapped, the four cylinders do not provide power.

03. How does AFM affect performance?

Excessive oil consumption

If your engine is running on AFM mode, you’re bound to witness your engine always needing more oil. This may be the most serious way an AFM affects an engine’s performance.

This is because the setup uses an oil pressure relief valve. This relief valve sprays oil directly on the piston skirts.

This oil spray, in most cases, seems to overwhelm the piston rings, hence gathering at the combustion chamber’s surface. This causes carbon build-up.

Transmission shudder

AFM causes engine transmission to shudder to a vehicle it’s installed on. This means your vehicle’s transmission begins to shake, or there’s a noticeable tremble.

This is majorly caused by AFM initiating contamination of transmission fluid.

Unresponsiveness of engine

There’s a considerable difference between the sensitivity and responsiveness of an engine that has an AFM mode activated on it and one without.

There’s always a delay in the acceleration of the engine, and this could be really frustrating when you need to speed a little bit higher.

04. Will disabling AFM save lifters?

Disabling AFM, even with the best AFM tuner, does not help filters in any way. Adding AFM delete kits does not save as much money as compared to changing the AFM valve filters altogether with new ones.

Your AFM lifters failed due to oil pressure or control.

AFMs activation or deactivation is determined by the extended valve lifter oil manifold.

Its function is to exert control on how the engine oil flows into the intake of the active fuel management system, as well as the exhaust valve lifters. AFM failure occurs first for the following reasons:

Low oil

When there’s only little oil available in the engine, the lifters are bound to get damaged.

In worse scenarios, they fail completely. The sliding surfaces of the lifters require enough oil to perform.

Poor quality oil

To function smoothly, AFM lifters need a good quality oil. A poor quality one only results in its underperformance or failure altogether.

This ultimately costs you a replacement of the lifters.

Wear and tear

In some cases, there aren’t any noticeable problems with your lifters, yet they fail. Constant use results in degradation of performance.

It is advisable to have your engine lifters replaced once you notice they’re beginning to get old and malfunctioning.

05. How do I disable AFM?

If you have looked into your engine’s performance and feel there is a need to turn off active fuel management, there are two ways to do that.

One of them is to install an AFM delete kit; the other is to install an AFM disabler.

Install an AFM delete kit

This is only recommended when the lifter fails or when you’re performing upgrades.

The AFM components are replaced with standard parts from the AFM delete kit. Here is what you should know:

  • First, upgrade to a non-AFM camshaft. The reason is that the cam lobes located in the four cylinders are different.
  • Shut down the AFM system using a computer programmer
  • It is recommended to plug the pressure relief valve into the oil pan


In the end, having an AFM disabler installed on your car’s engine is a necessity if you want to drive your vehicle in full-cylinder mode.

Because we understand how hard it can be to find the best tuner to disable afm available, we have delved into the top 7 products and brands you can find, with the New Range technology taking the top spot.

We hope having reviewed this, you learned a great deal about AFM disablers.

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