Range Technology RA003B AFM/DFM Disabler-Blue
Range Technology RA003B AFM/DFM Disabler-Blue
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Range Technology

Range Technology RA003B AFM/DFM Disabler-Blue

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Key item features

  • Core Functionality: Keeps V6 and V8 General Motors vehicles in full power by preventing the Active or Dynamic Fuel Management system from dropping cylinders.
  • Simple Installation: Plugs directly into the onboard OBD-II port for immediate operation, eliminating the AFM system.
  • ECU Integrity: Does not reprogram the factory ECU, ensuring no permanent changes to the vehicle's computer.
  • Reversible Operation: Leaves no trace; unplugging the device instantly returns the vehicle to factory settings.
  • Broad Compatibility: Fits all V6 and V8 General Motors active or dynamic fuel management cars, trucks, and SUVs.
  • Compatibility Note: Not compatible with 2022 Refresh model trucks or SUVs; check VIN for early 2022 models (12th digit '4' or lower).
  • Battery Consideration: Suggested to unplug if the vehicle is not driven daily or left for several days to prevent potential battery draw.
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Current price is Now $231.00
You save $34.95
was $265.95
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  • Free shipping
  • Free 30-day returns

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Ships to
Arrives between Jun 17 - Jun 20
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Sold and shipped by M4 Performance
4.6 stars out of 5, based on 20 seller reviews(4.6)
Free 30-day returns
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$265.95
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Shipping, arrives by tomorrow to Columbus, 43215
Sold and shipped by Walmart.com
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About this item

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Customer ratings & reviews

4.6 out of 5 stars
stars129 ratings113 reviews
How item rating is calculated
  1. 5 stars81% (105)
  2. 4 stars9% (11)
  3. 3 stars2% (3)
  4. 2 stars4% (5)
  5. 1 star4% (5)

Reviews summary

Pros

  • : Simple plug-and-play setup with no programming required.
  • : Provides direct pedal control with increased power.
  • : Runs consistently on all cylinders.
  • : Provides more gradual and powerful acceleration.
  • : Plugs in quickly with no wear.

Neutral

  • : Can be excellent for some, but inconsistent for others.
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Showing 1-3 of 113 reviews

Sep 15, 2025
Llyod J.
5 out of 5 stars review

Seller Verified Purchase

It accelerates smoother, with more

It accelerates smoother, with more power, and it coast much farther. I like all the improvements that I'm experiencing. I do have a question and that is the mileage computer relates that I'm getting lower gas mileage however, the actual mileage seems like it doesn't prove that is that the computer.

Review from realtruck.com
Helpful?4N9WT970KJPT564132665
Dec 6, 2025
Chris D.
5 out of 5 stars review

Seller Verified Purchase

Wish I purchased this sooner

Don't sleep on this delete. Mine works flawlessly, and makes my 2017 Suburban feel like a proper V8. Gas mileage drop 3mpg on long trips, but I'd rather buy more gas than replace an engine.

Review from realtruck.com
Helpful?4N9WT970KJPT564132665
Apr 26, 2026
Ryan G.
5 out of 5 stars review

Seller Verified Purchase

Great product

Fantastic. Does what it was designed to do. I read some reviews that it may cause your battery to die. I have yet to experience that and sometimes my suburban will sit for few days. 5 stars!

Review from realtruck.com
Helpful?4N9WT970KJPT564132665