- What Do You Drive?
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- Locks your ride in V8 mode for immediate power!
- Reduces throttle lag and provides more consistent power delivery across the entire power band
- Disables Active Fuel Management to unleash the true power of your engine
- Eliminates annoying cabin drone when used with aftermarket exhaust systems
- The Range AFM Disable Device has been shown to reduce oil consumption many vehicles with Active Fuel Management exhibit from switching between 4/8 cylinder modes
- Installs in seconds with no tools, simply plug it into your OBD-II port
- Does not reprogram the ECU, so no watermarks are left for the dealer to detect
- Made in the USA
- Your Range Active Fuel Management Disable Device boasts a 1-Year Warranty
When it comes to horsepower, dropping cylinders is a recipe for flat-lined performance. This especially holds true with Active Fuel Management (AFM) systems installed on V8-powered rides and rigs. While they're great for saving you at the pump, turning a V8 monster into a wheezing 4-banger understandably kills performance. Wake up all 8 of those potent pistons for full-time power with the Range Technologies Active Fuel Management Disable Device.
If Active Fuel Management has a stranglehold on your ride, the Range Technologies Active Fuel Management Disable Device is the answer. This powerful module completely disables AFM, allowing your ride to run on 8 cylinders constantly. All it takes is a few seconds to locate the diagnostic port in your ride and plug in the Range Technologies Active Fuel Management Disable Device. This results in a more responsive ride with all 8-cylinders available full-time and ready for action.
No adjustments are needed to enjoy the full performance of the Range Technologies Active Fuel Management Disable Device. And all changes are fully reversible, so if you need to restore the stock Active Fuel Management program, simply turn off the engine and unplug the device. Say goodbye to unpredictable power and snail-like acceleration with a Range Technologies Active Fuel Management Disable Device. Best of all, Range backs their Disable Device with a 1-year warranty.
- The Range Active Fuel Management Disable Device cannot be used in conjunction with aftermarket tuners that need to remain attached to the diagnostic port.
- The Range AFM Disable Device is NOT a programmer and does NOT change the ECU's mapping or memory locations. It is a dynamic interactive device that actually participates on the vehicle's communication line (bus) and revises the way the ECU uses its STOCK calibration to lock it in V8 mode. Since the Range AFM Disable Device does not change the factory programming in any way, your vehicle will still comply with the factory certified emissions profile.
Range Active Fuel Management Disable Device Customer Reviews
799 Customer Reviews
Reviewed by roger h (middleton, NH) Reviewed for a 2011 Chevy Silverado — Jul 27, 2019 5:43 AM
works to shut down the v4 mode fine, sticks out a bit on my 2011 silverado and the lights that tell you that its working are pointing down on the floor. one other thing, you get the default color blue because on this site there is no option to pick a color,very strange!!!!
Reviewed by Charles J (Lakeland, FL) Reviewed for a 2008 Chevy Silverado — Jul 26, 2019 3:43 PM
Has worked flawlessly since install several weeks ago which was really easy. Just plug it in. So far fuel mileage is slightly better. Seems to work exactly as advertised. Got a $40 discount to boot. Mine came with blue indicator that lights up drivers floor. Could be a little dimmer at night but not too much of a distraction. So far I'm very pleased with this purchase.
Reviewed by Stuart B (Youngsville, NC) Reviewed for a 2007 Chevy Impala — Jul 24, 2019 6:18 AM
Have been driving with this for a little over a month now and it works. All 8 cylinders all the time, no cycling back and forth between 4 to 8. Sounds better with my Impala SS also because with a performance exhaust when it cycled to 4 it sounded like crap. Also I get at least the same or a little better MPG with this. Plug n play easy.
Reviewed by Douglas H (Wapello, IA) Reviewed for a 2010 Chevy Silverado — Jul 20, 2019 7:05 PM
Have run it for 1500 miles in a 2010 Silverado 5.3,stays in 8 cylinder mode,don't drain the battery and no check engine light.Would recommend to anyone thinking about one.
Reviewed by Randy P (SOUTHSIDE, AL) Reviewed for a 2011 Chevy Avalanche — Jul 19, 2019 8:29 PM
I could tell the difference as soon as I left the driveway. Like driving a totally different truck. So far no difference in fuel consumption. Truck smoothly running on all 8 all the time. Fantastic acceleration and tranny shifting super smooth through all 6 gears. Love it! No battery problems whatsoever. Somewhat on the pricey side but quality device. No complaints at all. If you hate AFM your gonna love this little guy!