--- product_id: 207378584 title: "RA003B AFM/DFM Disabler-Blue" brand: "range technology" price: "€ 489.22" currency: EUR in_stock: true reviews_count: 13 category: "Range Technology" url: https://www.desertcart.sk/products/207378584-ra003b-afm-dfm-disabler-blue store_origin: SK region: Slovakia --- # 100% full power retention Plug & play OBD-II install No permanent modifications, factory reset RA003B AFM/DFM Disabler-Blue **Brand:** range technology **Price:** € 489.22 **Availability:** ✅ In Stock ## Summary > ⚡ Drive like you mean it—power, smoothness, and control in one plug! ## Quick Answers - **What is this?** RA003B AFM/DFM Disabler-Blue by range technology - **How much does it cost?** € 489.22 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/207378584-ra003b-afm-dfm-disabler-blue) ## Best For - range technology enthusiasts ## Why This Product - Trusted range technology brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Reversible & Risk-Free:** Unplug anytime to restore factory settings, leaving no trace - • **Effortless Installation:** Simply plug into your OBD-II port—no tools or expertise needed - • **Smooth & Reliable Drive:** Eliminates transmission clunks and awkward shifts for peace of mind - • **Unleash Full Engine Power:** Eliminates AFM for consistent V8 performance without hesitation - • **Fuel Efficiency Maintained:** Improves MPG by up to 2 miles per gallon without engine strain ## Overview The Range Technology RA003B AFM/DFM Disabler is a plug-and-play device designed for GM vehicles to disable the Active Fuel Management system, ensuring full engine power and smoother driving. It installs easily via the OBD-II port, leaves no permanent changes, and can be unplugged to revert to factory settings. Highly rated for improving throttle response, reducing drivetrain clunks, and maintaining or even improving fuel efficiency, it’s a cost-effective alternative to expensive camshaft replacements. ## Description GM AFM disabler-BLUE Review: Good Quality and it Works! - So easy to install. I found that my 09 Chevy Silverado pickup with the 5.3 motor runs more smoothly with this afm disabler. No hesitation and just runs like a V-8 should. I had heard that you might get 1or 2 miles to the gallon lower but I checked my mpg and I don't think it changed from after installing this afm disabler. Well worth the money and I haven't had a bit of problems with it. Just drive right and change your oil and your motor should last a long time. Buy this one and not the cheap ones to save you money. The old saying is you get what you pay for! Review: Peace of mind, better mpg, and smoother driving! - No more AFM crap! This completely takes care of the awkward transmission shifts, clunks in the driveshaft when AFM activates, and gives some peace of mind that the cam phasers aren’t going to malfunction in 4 cylinder mode. And this is a lot cheaper than a full camshaft replacement and AFM delete! I’m also getting about 2 more mpg. ## Features - Leaves no trace. Unplug it to return to factory settings - Range AFM/DFM Disabler keeps you in full power 100% of the time. - Simply plug into your onboard OBD-II port and it instantly begins working to eliminate the AFM system. - The power and control you need in any situation. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B084X5V8RR | | Automotive Fit Type | Vehicle Specific Fit | | Best Sellers Rank | #1,287 in Automotive ( See Top 100 in Automotive ) #2 in Automotive Replacement Engine Management Systems | | Brand | Range Technology | | Brand Name | Range Technology | | Customer Reviews | 4.4 out of 5 stars 2,444 Reviews | | Global Trade Identification Number | 00860001618600 | | Included Components | Main component only | | Manufacturer | RANGE TECHNOLOGY | | Manufacturer Part Number | RA003B | | Model Number | RA003B | | Number of Items | 1 | | Operating System | All | | Power Source | Corded Electric | | UPC | 860001618600 728505768859 | | Unit Count | 1 Count | ## Product Details - **Automotive Fit Type:** Vehicle Specific Fit - **Brand:** Range Technology - **Operating System:** All - **Power Source:** Corded Electric - **Unit Count:** 1 Count ## Images ![RA003B AFM/DFM Disabler-Blue - Image 1](https://m.media-amazon.com/images/I/71jREVrDlmL.jpg) ## Questions & Answers **Q: willl this work for a 2012 chevrolet silverado lt 5.3? thanks** A: It looks like a 2012 did come with Active Fuel Management system. The Range will work on it. If you have further questions Range is great at answering questions. **Q: Will this work on a gmc 2019 pickup denali 6.2 engine** A: Yes, it should work fine. Thank you. **Q: Will this work on a 2019 suburban 5.3?** A: I believe it should, works on a 2018 5.3 silverado. **Q: Would this work on my 92 oldsmobile?** A: I don’t believe Active Fuel Management was available in ‘92. So, I would say no. But check the product page on the Range website for compatibility just to be sure. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Good Quality and it Works! *by R***R on June 16, 2026* So easy to install. I found that my 09 Chevy Silverado pickup with the 5.3 motor runs more smoothly with this afm disabler. No hesitation and just runs like a V-8 should. I had heard that you might get 1or 2 miles to the gallon lower but I checked my mpg and I don't think it changed from after installing this afm disabler. Well worth the money and I haven't had a bit of problems with it. Just drive right and change your oil and your motor should last a long time. Buy this one and not the cheap ones to save you money. The old saying is you get what you pay for! ### ⭐⭐⭐⭐⭐ Peace of mind, better mpg, and smoother driving! *by C***Y on July 29, 2026* No more AFM crap! This completely takes care of the awkward transmission shifts, clunks in the driveshaft when AFM activates, and gives some peace of mind that the cam phasers aren’t going to malfunction in 4 cylinder mode. And this is a lot cheaper than a full camshaft replacement and AFM delete! I’m also getting about 2 more mpg. ### ⭐⭐⭐⭐⭐ Range Technology AFM / 5.3L Tahoe with the heavy-duty towing package *by B***E on January 21, 2026* Purchased this Range Technology AFM disabler for a Tahoe with 5.3L V8. My Tahoe would drop into the 4 Cylinder mode often, very annoying. I have never gotten used to the hesitation when the engine shifts back into the V8 mode in response to my attempt to accelerate, especially from a dead stop. When driving in normal traffic situations the 5.3L FMS constantly put the engine in and out of V8 to V4 and back distracting from the driving experience. Freeway driving was another area where the 5.3L FMS would drop the engine into V4 when my foot came off the pedal or while coasting which is especially annoying while towing a 6500 lbs. RV or when attempting to pass another vehicle. Installing the Range Technology Disabler has solved these problems and I have noticed the vehicle drives much smother. Yes, it cost more than the knockoffs, but I believe it's worth it. My first AFM disabler was a top-rated knockoff brand, cheaper for sure, but I found it didn't work as I thought it should have, it kept the Tahoe's 5.3L in V8 mode but something was missing, it wasn't smooth running like I experience with Range Technology FMS disabler also there was no way to see the lights on the disabler as they were partially covered with the wrap. Remember the old saying "You Only Get What You Pay For" applies here. I am pleasantly surprised with the build quality, ease of installation and the function of the Range Technology device. Only thing I don't like, nothing in the instructions give you a clear understanding of what ALL the light functions indicates but you can go to Range Technology's web site. Also, I have had no issues with the truck's battery SOC and I have seen a slight increase in fuel economy. I do recommend this device. ## Frequently Bought Together - Range Technology RA003B AFM/DFM Disabler-Blue - bbfly-B6 OBD2 Splitter 16 Pin OBD II Splitter Extension 1x Male and 2X Female Extension Cable Adapter (1FT/30CM) (1Pack) - bbfly-A9 OBD II OBD2 16 Pin Splitter Extension 1x Male and 2X Female Extension Cable Adapter (2FT/60CM) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.sk/products/207378584-ra003b-afm-dfm-disabler-blue](https://www.desertcart.sk/products/207378584-ra003b-afm-dfm-disabler-blue) --- *Product available on Desertcart Slovakia* *Store origin: SK* *Last updated: 2026-08-19*