---
product_id: 204127833
title: "RA003 Active Fuel Management Disabler Device, AFM/DFM Disabler Device Compatible with most GM V6 and V8 Vehicles"
brand: "gtmotor"
price: "478.98 DT"
currency: TND
in_stock: true
reviews_count: 4
url: https://www.desertcart.tn/products/204127833-ra003-active-fuel-management-disabler-device-afm-dfm-disabler-device
store_origin: TN
region: Tunisia
---

# Keeps V8 mode active 100% of the time Plug & play, no tools needed Non-invasive, no ECU reprogramming RA003 Active Fuel Management Disabler Device, AFM/DFM Disabler Device Compatible with most GM V6 and V8 Vehicles

**Brand:** gtmotor
**Price:** 478.98 DT
**Availability:** ✅ In Stock

## Summary

> ⚡ Keep your V8 roaring—never settle for less power!

## Quick Answers

- **What is this?** RA003 Active Fuel Management Disabler Device, AFM/DFM Disabler Device Compatible with most GM V6 and V8 Vehicles by gtmotor
- **How much does it cost?** 478.98 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/204127833-ra003-active-fuel-management-disabler-device-afm-dfm-disabler-device)

## Best For

- gtmotor enthusiasts

## Why This Product

- Trusted gtmotor brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Unleash Full V8 Power:** Experience relentless V8 performance without cylinder deactivation.
- • **Wide GM Compatibility:** Works seamlessly with most GM V6 and V8 engines—upgrade your ride’s power profile instantly.
- • **Stay Cool, Drive Smart:** Keep all cylinders firing, but monitor engine temperature for peak performance and safety.
- • **Effortless Installation:** Plug and play design means zero tools and zero hassle—get back on the road fast.
- • **Preserve Your Factory ECU:** No ECU reprogramming ensures your vehicle’s core systems stay intact and warranty-friendly.

## Overview

The RA003 Active Fuel Management Disabler is a plug-and-play device designed for most GM V6 and V8 vehicles. It disables cylinder deactivation, keeping your engine in full V8 mode for maximum power without reprogramming the factory ECU. Easy to install and non-invasive, it enhances driving performance while maintaining vehicle integrity. Note: Not compatible with 2019+ 5.3L or 6.2L 10-speed models.

## Description

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

## 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.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| 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 |

## Images

![RA003 Active Fuel Management Disabler Device, AFM/DFM Disabler Device Compatible with most GM V6 and V8 Vehicles - Image 1](https://m.media-amazon.com/images/I/71obycY1iPL.jpg)
![RA003 Active Fuel Management Disabler Device, AFM/DFM Disabler Device Compatible with most GM V6 and V8 Vehicles - Image 2](https://m.media-amazon.com/images/I/61e0zyaBe1L.jpg)
![RA003 Active Fuel Management Disabler Device, AFM/DFM Disabler Device Compatible with most GM V6 and V8 Vehicles - Image 3](https://m.media-amazon.com/images/I/81-v0i48U8L.jpg)
![RA003 Active Fuel Management Disabler Device, AFM/DFM Disabler Device Compatible with most GM V6 and V8 Vehicles - Image 4](https://m.media-amazon.com/images/I/81T8VA2U4iL.jpg)
![RA003 Active Fuel Management Disabler Device, AFM/DFM Disabler Device Compatible with most GM V6 and V8 Vehicles - Image 5](https://m.media-amazon.com/images/I/81uMCoSFPzL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great Device for Much Less than the Better Known Brand
*by M***B on January 4, 2021*

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.

### ⭐⭐⭐⭐⭐ Easy and effective!
*by D***S on April 11, 2023*

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….

### ⭐⭐⭐⭐⭐ It works ,give it a try
*by T***Y on January 3, 2025*

The module is simple to install,just follow directions,the blue light goes off when the key is turned off so I don’t see no battery drain issues .My 2016 Silverado with the 5.3 ran excellent before the module but seems even better now shifting is smooth as silk ,oil pressure runs at 40 transmission still runs same temp all V8 mode no more 4 cylinder foolishness,I’m a vehicle enthusiast and very picky about my truck ,pull the trigger and get this module it could save you thousands in repairs in the long run 👍

## Frequently Bought Together

- RA003 Active Fuel Management Disabler Device, AFM/DFM Disabler Device Compatible with most GM V6 and V8 Vehicles
- bbfly-A9 OBD II OBD2 16 Pin Splitter Extension 1x Male and 2X Female Extension Cable Adapter (2FT/60CM)

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-01-24*