Range Technology RA003G AFM/DFM Disabler-Green | 2020-2024 GM Silverado/Sierra 1500

Features:

• Keeps engine in full-cylinder mode always
• Disables both AFM and DFM systems
• Also turns off Auto Start/Stop feature
• No reprogramming of factory ECU required
• Maintains factory warranty protection
• Plug-and-play install via OBD-II port
• Leaves no trace when unplugged
• Compatible with 5.3L and 6.2L engines
• Fits most 2020–2024 GM V6 and V8s
• Green LED is cosmetic only
• Made in the USA
• EPA Tampering Policy compliant

Get Your Full V8 Power Back Instantly

There’s nothing more frustrating than driving a truck that doesn’t give you everything it’s got. If your Silverado or Sierra feels like it's cutting corners on performance, the Range Technology RA003G AFM/DFM Disabler is exactly what you need. This easy-to-use device keeps your V6 or V8 running on all cylinders, all the time, which means better throttle response, more consistent power, and an overall smoother driving experience. It also shuts off the Auto Start/Stop feature that can be annoying in stop-and-go traffic or when you're trying to keep the A/C running on a hot day. You just plug it into your truck’s OBD-II port, and it starts working immediately, no tools or tuning required. Best of all, it doesn’t touch your factory ECU, so your warranty stays fully protected. When you’re ready to remove it, simply unplug the module and everything returns to stock settings.

Simple Reliable Control Of AFM And DFM Systems

The RA003G is built to solve a common issue in 2020–2024 GM trucks equipped with AFM or DFM systems that cut cylinder function to boost fuel economy. While the concept sounds efficient, it often leads to sluggish performance, uneven power delivery, and long-term engine wear. This disabler bypasses those systems entirely, forcing the engine to operate in full-cylinder mode at all times without reprogramming the ECU. It works through the onboard OBD-II port and leaves no trace once removed, making it perfect for warranty-conscious owners. The device also disables Auto Start/Stop, offering a smoother ride and eliminating the lag many drivers experience when pulling away from a stop. It’s compatible with most 5.3L and 6.2L V8 trucks from 2020 to early 2022 and supports select V6 models as well. Note that this model is not designed for 2022.5+ Refresh trucks or 2021+ SUVs, so VIN confirmation is recommended before purchase. With a cosmetic green LED and reliable, plug-and-play design, it’s a straightforward upgrade for performance-minded drivers.

Fits: 2020, 2021, 2022, 2023, 2024 GM Silverado/Sierra 1500

Notes:

• Compatible with most 2020–2024 GM Silverado and Sierra 1500 trucks
• Supports 5.3L and 6.2L V8 as well as select V6 engines
• Not compatible with 2022.5+ GM Refresh trucks or 2021+ GM SUVs
• Check 2022 model VIN for compatibility (12th digit should be 4 or lower)
• Device should be unplugged if vehicle sits unused for several days
• May cause minor battery draw in some applications
• Green LED is for cosmetic preference only, no performance impact
• Does not alter or flash factory ECU software
• Leaves no trace once removed for warranty-safe service visits
• Installs easily through the OBD-II port with no tools required
• Made in the USA by Range Technology
• Legal for use in 49 states under EPA Tampering Policy
• Not legal for sale or use in California (CARB approval pending)