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GREATUS

RA003 Active Fuel Management Disabler Device, AFM/DFM Disabler Device Compatible with most GM V6 and V8 Vehicles

    • Based on 2,551 reviews
Condition: New
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$83.99 Why this price?

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This item's return window has been extended for the holiday season: Returnable until Jan 31, 2025

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Availability: In Stock.
Fulfilled by Amazon
Arrives within 30 days
Order within 17 hours and 44 minutes
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Features

  • 1.AFM/DFM Disabler Device RA003 Compatible with most GM V6 and V8 vehicles.
  • 2.AFM RA003 keeps the vehicle in the V8 mode all the time,help your car get super power.
  • 3. Plug and play, install without any tools.Please unplug the product,when you do not use this for a long time.
  • 4. Keep the factory ECU, not programming the ECU of the vehicle, and does not affect other functions of the vehicle, but the modified vehicle is cautious to buy.
  • 5. Please note: V8 mode will keep all the cylinder running, the water temperature may increase during driving. The product currently not compatible with 2019+ 5.3L 10-Speed or 6.2L 10-SPEED models.

Description

Small product, great function, make you get enough power while driving, keep V8.

Manufacturer: ‎GREATUS


Brand: ‎GTMOTOR


Item Weight: ‎1.76 ounces


Product Dimensions: ‎4.72 x 3.94 x 3.94 inches


Item model number: ‎‎Amanita muscaria Clenbuterol Codeine


Manufacturer Part Number: ‎RA003


Date First Available: July 4, 2019


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: within 30 days

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
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  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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Top Amazon Reviews

    • Plugs right in and works great!
Bought this for a 2015 GMC Yukon XL. The Yukon was sluggish in 4 cylinder mode and did not transition smoothly between 4 and 8 cylinders. We were also having torque converter issues and needed to be able to tell which symptoms were from torque converter issues and which symptoms were just transition between 4 and 8 cylinders. Turns out a new torque converter was needed, but left this plugged in simply for in town driving because of the lugging. So far a slight decrease in mpg has been noticed, but well worth it for nice smooth in town driving. It is also nice on the highway to not have to wait for the truck to switch modes then downshift for acceleration. Would definitely recommend! This seems to do just as good of a job as any other brand would for much less money. Bought this one because of the good reviews and wanted to share that it has been well worth it! Hoping to also save the hassle of doing lifters in the future. ... show more
Reviewed in the United States on July 8, 2024 by No Name
    • Easy and effective!
I received this today and couldn’t wait to try it. My 2007 Chevrolet Tahoe has the AFM. Recently it developed a “shuddering” in the engine when slowing down, along with a little feel of a periodic misfire at idle. My mechanic discovered the misfire was occurring in cylinder 4 and was likely related to the shuddering and these were both caused by AFM. Installing is a breeze. However, I did not disconnect the battery as the instructions indicate, but had read other reviews stating they just plugged it in while the engine was off, so I did that. The unit went through a cycle with the lights and then settled on one light on at the end. I let the car sit for several hours as I had some other business to attend to. I then hopped in the tahoe and it fired right up, and took it for a drive. It performed excellent. Love the feel of the V8 all the time. Shuddering completely gone with no V4 at any time throughout the ride. I still felt a little periodic misfire at idle, but that’s likely a lifter that is sticking a bit. My only regret is that I didn’t plug this in at 100,001 miles as I believe the lifter sticking (which is the beginning of the end for the motor) is due to AFM. I currently have just over 200,000 miles on the car and engine and with this device I just might make 300,000. If you’re looking for an AFM Disabler, this is a solid pick at a good price! Let’s see how it does over time…. ... show more
Reviewed in the United States on April 11, 2023 by D. Lewis
    • Great Device for Much Less than the Better Known Brand
Review Image by Michael B Michael B
Review Image by Michael B Michael B
Review Image by Michael B Michael B
I am so happy with this thing that I actually could not wait to do this review. Having my 2015 Silverado 1500 Z71 with 5.3 engine for more than a year now, this AFM disabler is the best thing I have done to it. Like many others, at first I thought the AFM function was fairly neat. A way to save a bit of fuel. But, although it is a consideration, do we really buy V8 trucks to go into 4-cylinder mode? As many others have suggested, including the manufacturer’s instructions, I didn’t plug this thing in until I first disconnected my negative terminal from the battery. After that, one push into the OBD port and then reconnect the battery. Took all of 15 seconds. Don’t be put off by the simple packaging and one-page instruction sheet. That is all you need. I let it stop flashing and proceeded to take s test drive. Highway speed or moderate to heavy acceleration was never the problem. My complaint was the transition to 4-cylinder as I drove through the 20mph areas where I live or when gently trying to accelerate after a near stop for a traffic light. That is when the AFM made that annoying pop from the exhaust, custom run duals behind the passenger side rear wheel, and there was a delay in acceleration. No longer! It was immediately better. Drove the same street where it ALWAYS went into half-engine mode but this time the display indicated the V8 was always active. It kept the throaty sound and actually pushed better at slow speeds before I needed a heavier acceleration. As I stated previously, I instantly felt a difference. Now, for the skeptic. I was so very close to getting the Range AFM many times but could never quite bring myself to spend the $190 or so on what I thought was a “maybe it will work” situation. I found this one and, after reading many of the reviews, decided to try it knowing I would return it if it did not work and then buy the more expensive one. I don’t care what it’s branded. I only care that it was approximately $60 cheaper than any other one and that it works exactly as it should. If it fails, I will update this review. For now, though, I am very pleased and will tell anyone that it was the most quickly apparent improvement short of a custom program job or a new set of lifters, cam shaft etc. for my performance. Take it or leave the blue light glow on my foot well. I don’t really care for it so will probably put tape over the LEDs. ... show more
Reviewed in the United States on January 4, 2021 by Michael B Michael B
    • $6000 Engine or $80 FIX
I bought this item to stop my 2010 Chevrolet Suburban LT from switching in and out from V8 to V4 under the AFM (Automatic Fuel Management) feature. I have had two friends ruin their lifters and bend rods thus destroying their engine. After reading several reviews about this item I chose to not spend the money on the more expensive plug-in device which essentially turns off your AFM feature on your vehicle. The device simply plugs into your OBD-II port, when your car is off, which is usually located at the bottom of the trim that usually surrounds your steering wheel. Then start your vehicle up and the device will blink a couple times then will illuminate with a steady light. Then I drove my Suburban for a few miles to see if the device plugged into my OBD-II port successfully shut off my vehicles AFM. I immediately noticed increase in power, smoother shifting of gears and a more solid deeper sound from my engine. I just got back from a 6 hour trip and the Suburban ran great with no signs of the engine shifting to cylinders. I usually get 14.8mpg before installing the plug-in. Now I get 14.3mpg with the plug-in installed at 78mph. So you you do lose about .5mpg using the plug-in. But that is a drop in the bucket for savings compared to spending 6K on another engine when the lifters fail due to the active (AFM) vehicle feature. Therefore, I am very happy with my purchase. ... show more
Reviewed in the United States on April 20, 2022 by Amazon Customer
    • 2 Years and so far, so good
Works exactly as expected. No more AFM on my 2015 Sierra 4.3. It does pull apart easily when you try to take it out. Other than that, excellent.
Reviewed in the United States on November 2, 2024 by Doctoraven

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