--- product_id: 309397367 title: "Range Technology RA003R AFM/DFM Disabler-Red" brand: "range technology" price: "$882.94" currency: USD in_stock: true reviews_count: 5 category: "Range Technology" url: https://www.desertcart.us/products/309397367-range-technology-ra003r-afm-dfm-disabler-red store_origin: US region: United States of America --- # 100% full power, no cylinder drop Plug & play OBD-II setup Red LED status indicator Range Technology RA003R AFM/DFM Disabler-Red **Brand:** range technology **Price:** $882.94 **Availability:** ✅ In Stock ## Summary > ⚡ Unlock your truck’s true beast mode—no compromises, just power. ## Quick Answers - **What is this?** Range Technology RA003R AFM/DFM Disabler-Red by range technology - **How much does it cost?** $882.94 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/309397367-range-technology-ra003r-afm-dfm-disabler-red) ## 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 - • **Effortless Installation:** Plug into OBD-II port and go—no mechanic needed - • **Unleash Full Engine Power:** Eliminate AFM cylinder drop for consistent max performance - • **Compatible with Top GM Models:** Works seamlessly with Buick, Cadillac, Chevrolet, GMC & more - • **Instant Feedback with Red LED:** Visual confirmation that your power upgrade is active - • **Warranty-Safe Performance Boost:** Disables AFM without ECU reprogramming or voiding warranty ## Overview The Range Technology RA003R AFM/DFM Disabler is a plug-and-play device designed for select GM vehicles that disables the Active Fuel Management system, ensuring your engine runs on full cylinders at all times. It installs easily via the OBD-II port, requires no ECU reprogramming, and features a red LED indicator to confirm operation. This device delivers smoother shifts, improved throttle response, and consistent power without voiding factory warranties. ## Description The Range Technology AFM Disabler Device modules allow your vehicle to run in full cylinder mode at all times, preventing the Active Fuel Management (AFM) system from dropping cylinders. This patented technology is the only product that will disable AFM without reprogramming the factory ECU. You get full power delivery all the time without factory warranty concerns. Review: Love this, plug and play. New truck! - My truck is a 2017 gmc sierra 1500 with a 6.2motor, 8 speed trans. It has been a night and difference for the better. Better fuel mileage, smoother shifts, more power at any given moment. My truck is a beast let out of its cage, or the perfect work horse pulling away. I have had this in my truck for three months. No shaking or hesitant shifts, just a very happy truck. Worth every penny. Just buy and thank me later. Review: easy install well worth it - easy install,instantly sounded different, better performance all across the board,truck shifts better, gas mileage on day to day driving was a tad bit better,on a highway trip towing an atv trailer my gas mileage wasnt as good but a decent trade off for better power on the hills, will i keep it installed? most definatley! ## Features - -Compatible with select Buick, Cadillac, Chevrolet, GMC, Isuzu, SAAB, Pontiac, Saturn & Suzuki GM vehicles - -Keeps you in full power 100% of the time, no more shuddering or dropping cylinders - -Fast and easy setup; simply plug into your onboard OBD-II port and it instantly begins working to eliminate the AFM system - -Does not reprogram your factory ECU, unplug it to return to factory settings - -Red LED version ## Technical Specifications | Specification | Value | |---------------|-------| | Manufacturer | Range Technology | | Brand | Range Technology | | Product Dimensions | 10.16 x 10.16 x 2.54 cm; 9.07 g | | Item model number | SB-122AMG | | Manufacturer Part Number | RA003R | | Item Weight | 9.07 g | ## Images ![Range Technology RA003R AFM/DFM Disabler-Red - Image 1](https://m.media-amazon.com/images/I/6111rQ5EM7L.jpg) ## Available Options This product comes in different **Color** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Love this, plug and play. New truck! *by D***Y on 16 March 2024* My truck is a 2017 gmc sierra 1500 with a 6.2motor, 8 speed trans. It has been a night and difference for the better. Better fuel mileage, smoother shifts, more power at any given moment. My truck is a beast let out of its cage, or the perfect work horse pulling away. I have had this in my truck for three months. No shaking or hesitant shifts, just a very happy truck. Worth every penny. Just buy and thank me later. ### ⭐⭐⭐⭐⭐ easy install well worth it *by M***K on 9 August 2024* easy install,instantly sounded different, better performance all across the board,truck shifts better, gas mileage on day to day driving was a tad bit better,on a highway trip towing an atv trailer my gas mileage wasnt as good but a decent trade off for better power on the hills, will i keep it installed? most definatley! ### ⭐⭐⭐⭐⭐ 10 month review and MA state inspections PASS *by C***. on 9 October 2025* I have been extremely impressed with this Range AFM disabler since I first used it in May 2025. Besides the obvious fact that you will use more gas staying in V8 mode. It offsets the mild shudder without it and the brief hesitation when cruising at 75 and open it up. I didn’t notice any battery drain while I left it plugged in. (Always start vehicle with Range plugged into OBD and turned off while still plugged in) Lastly, here in MA we have to have yearly inspections and I unplugged Range minutes before the machine was connected to my OBD. Range has no affect on your MA state inspections. No red flags, no issues at all Absolutely love the Range AFM disabler ## Frequently Bought Together - Range Technology RA003R Plug & Play AFM/DFM Active Fuel Management Disabler (Package may vary) - WIT WHATEVER IT TAKES TRANSMISSION PARTS, INC 6L80 6L90 8L90 Sure Cool System Upgrade STL010 - Rough Country Cold Air Intake for 2014-2018 Chevy/GMC 1500 | 5.3L/6.2L - 10551 --- ## 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.us/products/309397367-range-technology-ra003r-afm-dfm-disabler-red](https://www.desertcart.us/products/309397367-range-technology-ra003r-afm-dfm-disabler-red) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-08-21*