null Skip to main content
Toggle Menu Shop
Add a Vehicle
Advanced Search

Select My Store
AFM/DFM Disabler | HOLRA003B
Image coming soon

AFM/DFM Disabler | HOLRA003B

Part #HOLRA003B
$393.99

Fulfillment

FREE in-store pickup
* Shipping not yet available
Adding to cart… The item has been added
The Range Technology AFM/DFM Disabler for GM vehicles is the perfect solution for drivers who want full control over their engine’s performance. This simple plug-and-play device disables GM’s Active Fuel Management (AFM) and Dynamic Fuel Management (DFM) systems, allowing your engine to run in full cylinder mode at all times. No more frustrating transitions between V4 and V8 operation. Just smooth, consistent power whenever you need it. Designed for GM trucks, SUVs, and cars, the AFM/DFM Disabler helps eliminate issues like excessive oil consumption, lifter failure, and rough idle, giving you improved reliability and a stronger, more responsive driving experience. Installation couldn’t be easier, simply plug the Range device into your vehicle’s OBD-II port, and it instantly disables cylinder deactivation without requiring any tools or permanent modifications. It doesn’t reprogram your ECU or leave a trace; just unplug it at any time to return your vehicle to stock operation. The disabler is completely safe for your GM’s electronics and features built-in power management to prevent battery drain when the vehicle is off. Whether you’re towing, off-roading, or daily driving, the Range Technology AFM/DFM Disabler ensures your engine stays in full power mode for better throttle response, smoother acceleration, and improved performance consistency. Compatible with a wide range of GM applications including the Chevrolet Silverado, Tahoe, Suburban, GMC Sierra, Yukon, and Cadillac Escalade. This device is trusted by enthusiasts who demand the best from their trucks.
  • 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
  • Disables Auto Start/Stop
  • Blue LEDs
  • The Range AFM/DFM Disabler does not reprogram factory ECU
  • Works in hundreds of applications, 2007-2022, including 10-speed models.
  • Leaves no trace, unplug it to return to factory settings
  • Virtually no battery draw
  • Fits all V6 and V8 General Motors (GM) active or dynamic fuel management vehicles, includes cars, trucks, and SUVs
  • This device does not support the 2022.5+ Refresh model trucks or 2021+ SUVs
  • To confirm your 2022 model truck is compatible with this unit, check your VIN. The 12th digit in an early model must be a '4' or lower
  • Made in USA
Details
Product Dimensions 3.30 x 10.41 x 10.41 inches
Manufacturer Part NumberRA003B
Vehicle Fitment
Buying Online

In-store Pickup

  • In-stock items: Ready in as little as 2 hours.
  • Ship-to-store items: Ready in-store in 1 to 4 days.
We’ll keep you informed every step of the way and email you as soon as your order is ready for in-store pickup. Want more info? Visit Click and Collect.

Shipping

Coming soon! Sign up and we’ll let you know when shipping is available.

Returns

Most unopened online purchases can be returned or exchanged at any of our store locations within a year from the date of sale. Some exceptions apply. See our return policy for full details.

Related Products

!

GENERAL INQUIRIES

Need help finding an item?

Ask a store representative to place a special order.