7 Best AFM Disabler in 2020 | Reviews & Buying Guide

Most of the GM vehicles come with a pre-installed AFM system running their engines. Although there are advantages of AFM, it’s not that efficient of a system.

Your car will run much better without it. So disable the AFM, pump up the engine to full throttle, and get done with the job at top speed. However, you might want to turn the AFM back on later. So, get a disabling system that is reversible.

And for you, we have the best AFM disabler here. It will turn off the AFM without interfering with the regular computing system of the car.

We have hand-picked 7 of the top AFM disablers, and they are in the list below. Study them carefully, and then take your pick!

Best AFM Disabler Reviews 2020

Image	Model	Speciality	Price
	Range Technology Active Fuel Management Disable Device (Blue)	Best Overall	Check on Amazon
	Superchips 3571-JL Superchips Flashcal	Runners Up	Check on Amazon
	DiabloSport 8245 inTune i3 Platinum Performance Programmer 3rd Generation	Most Premium	Check on Amazon
	Range Technology Start/Stop Disable Device Blue (BLUE)	Budget Option	Check on Amazon

AFM disablers will give you control over the cylinders of the engine so that you can enjoy the full pleasure of driving in sync with the true power of your vehicle. But if the AFM disabler is not efficient, you will be in more trouble with it than without it. So, pick wisely.

1. Range Technology Active Fuel Management Disable Device

This will keep your V8 engine from switching to the 4-engine mode.  The way that it does so is telling of its quality. As soon as you switch it on and turn the key into your vehicle, you will hear that exhilarating sound of the engine revving up. With this device, you will only be one click away from getting the best performance out of your car.

Another thing that will tempt you to buy this disabler is the fact that setting this up doesn’t require the use of any tools at all. You will find a diagnostic port under your car’s dashboard. Just plug the disabler into this port, and it’ll be ready. Yes, it’s as simple as that.

If the car is too loaded, some disablers struggle to pull down the AFM. Not this one though, This device has the power to pull your car into a non-switching mode in just a few seconds. And the load isn’t a problem with this one. It is, in fact, designed to give you an instantaneous response on the throttle regardless of the weight. So if you are looking for a disabler for heavy-load cars, then this is the perfect disabler for you.

2. Superchips 3571-JL Superchips Flashcal

If you have recently gotten new tires, and are getting frustrated with the different calibrations required for the perfect sync, then this tuner will save you from worries. It is a trusted Superchips calibrator that is compatible to run with any model of Jeep Wrangler.

It will make your experience with the car and the new tires much better. The computer inside the car is responsible for all of the connections between the meters and the tires.

If the sync between these systems is even a bit off, then you are going to end up with getting inaccurate data on display. Your computer will go into limp mode and stop responding to the changes that it is supposed to note.

Get this tuner to avoid confusion like that.

You will find a range of options here that you can easily control. There is the axle lock, the gear ratio, TC low ratio, lamp delay, horn chirp, and many other essential parameters.

The most convenient advantage that sets this tuner apart from other tuners in the market is its big display screen. The screen is a big relief to work with, as it will make the whole task a lot easier for you.

3. DiabloSport 8245 inTune i3 Platinum Performance Programmer 3rd Generation

The best part about this programmer is that it will connect to WiFi. Yes, you do not have to manually handle the operations for getting the system upgraded. Please note that you can only use this programmer if your vehicle is a Ford, RAM, GM, Jeep, or Dodge. This programmer will not be compatible with any vehicle that is not from these companies.

Another thing that you are going to love about this programmer is that it can be licensed multiple times. If you have multiple vehicles, then you can use it on every one of them as long you get your tuner licensed.

Then, in terms of the performance of the tuner itself, you will find that it comes loaded with 3 different tunes. You will get each for the octane ratings of 87, 91, and 93. Other than these, you are also going to have the advantage of finding side parameter adjustments with the tire size, lights, cleaning up of diagnostic codes, and so on.

Then come the physical features that are just as impressive as the inner potential. The tuner is a box that is black in color and has a very solid feel to itself. This means that you can accidentally drop the device, and it will survive the fall without any damage.

It also has a big screen that is easy to navigate around.

4. DiabloSport S1000 Sprint Car Fuel Management Module 2005 To Current GM Vehicles

This is a contender of the AFM disabler from Range. It will work on GM and Chevrolet vehicles that are of the O5 model or newer. If your vehicle fits the description, then this disabler will work for you. It will stop the vehicle from switching to the V4 model.

As a result, your car will stay in the V8 engine mode all along. The gas consumption will be a bit higher, but you will, of course, get the full power that you are looking for. Also, you know that annoying noise your car makes when it has to hold back 4 of its cylinders on each side? Yes, that will also be silenced when you plug this disabler into the OBD-2 port.

Just as soon as you plug it in, you will know that the disabling system has been activated by the bar of red light that flashes on it.

It is best to use this device when you are carrying heavy loads on your vehicle. When not in use, make sure to unplug it from the system; otherwise, it will eat up all the battery juice.

5. Range Technology Start/Stop Disable Device Blue (BLUE)

You will find that there are many disablers in the market that promise to give the best experience out of the four-cylinder system, but to do that, they interfere with the engine control unit of the car and mess things up worse.

But in that regard, Range disablers are in a league of their own. They operate on their mechanism and connect to the computer without interfering with the other settings.

Once you connect it to the OBD-II port of the vehicle, you will not have to make any other adjustments. Just turn the key into the vehicle, and you’ll find that the AFM has already been disabled. Also, this only affects the shift points by a minimum. Even if you use the transmission with 6 forward gears, you are not going to notice much of a difference.

6. FOXWELL NT301 OBD2 Scanner Professional Mechanic OBDII Diagnostic Code Reader Tool for Check Engine Light

Every vehicle is easier to work with if you have the help of a good OBD scanner. And a good scanner is exactly what this device is. It will help you to accurately diagnose your vehicle for any problems that you might have noticed while driving.

The device will sync up the engine, monitor the airflow, check the oxygen sensors, and give you many other indications as to the places where your vehicle might need some tweaking.

You will also be able to do emission tests with it, and thus have an accurate, in-depth knowledge about the state of your vehicle.

There is a big display screen that clearly indicates the status of the car’s system. Monitoring this screen is quite easy due to the navigation buttons that are neatly arranged on the body of the scanner.

You can read error codes on this scanner, and no matter what type of vehicle you have, this device will give precise readings at any time.

7. Jet 15008 Performance Programmer

Any decent modern vehicle has the need for a good programmer to make a connection between its computer and its components. You can use this device on your own – it is very simple to work with.

It has a triple power tuning system. If you properly tune your car, you will get better performance out of it. You won’t have to compromise your driving skills to fit the car, rather you can tune the car’s engine to deliver a higher and more efficient output.

There is a pre-installed scanner in the programmer, and it will notify you with trouble codes if there is an issue with the car.

And as long as you have this programmer installed, you will also be saved from the unnecessary flashing of the trouble lights while you’re changing the tires. The AFM disabler will give you accurate readings on the speedometer, and thus, you will have a much better time driving the car without worrying about probable issues with the vehicle.

Buying Guide For AFM Disabler

There is not much instruction here, as the disabler works mostly from the inside. It connects to the computer and blocks the AFM system from sending stoppage impulses to the cylinders. The buying decision, in this case, is basically dependent upon external factors that we are noting down below.

Response Time

Make sure that the disabler starts work as soon as the engine is turned on. If the disabler doesn’t prevent the AFM system immediately, then the car will hesitate in the decision to engage the cylinders, and this will cause it to jerk in place for some time.

Compatibility with Tuners

You cannot use most disablers if you have tuners plugged in your car. If you don’t want to take them off, then check for disablers that can be connected to the port alongside the tuners.

Exhaust Sound

If possible, test out the disabler by plugging into a car first. Check whether it silences the exhaust sound or not. Some disablers do this better than others, so try to get the one that gives you the most silence inside the car.

Light Signal

Get a disabler that has a light on its body. This will make it easier for you to locate it, and check whether the disabler is working properly, or whether it has fallen off somewhere by accident.

FAQs For AFM Disabler

Q: Can I turn the AFM back on when I need to?

Yes, most of these disablers are reversible. Just unplug them from the port to stop their function.

Q: Will the car burn more oil if I use a AFM disabler?

Yes, the disabler’s job is to keep all the 8 cylinders engaged. Due to the engagement of all 8 cylinders, a higher amount of oil will be consumed.

Q: Will disablers increase noise levels?

The exhaust system is supposed to be less noisy because the car is not having to put effort into holding back half of its cylinders.

Q: What is the advantage of using a disabler?

Without the disabler, the car will not be able to go up to its full speed.

Q: What is one disadvantage of using the disabler?

The disadvantage is that the disabler feeds off of the car’s battery.

Q: What do I have to be careful of when using a disabler?

If you do not use your vehicle regularly, then make sure to plug off the disabler after every use. If left unused inside the port, the disabler will soak up all the battery energy overnight. To learn how to disable active fuel management system properly, we have a guide.

Final Words

If you are looking for the best AFM disabler, we hope you have already come to a conclusion.

If not, well, our pick is the one from Range Technology. Their disabler has been in the market for the longest time, and it is quite trusted among users. For long periods of performance, it is necessary to get a device that you can trust.

Hopefully, this article was fun to read. Have fun driving your vehicle to its full power. And for best lug nuts for your car, check out this article of ours. Click here if you want to return to our homepage,