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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.

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Range Active Fuel Management Disable Device Customer Reviews

Average Rating

656 Customer Reviews

Exactly what I was needing for my SS L99.

Reviewed by Charles S (COLUMBUS, IN) Reviewed for a 2010 Chevy Camaro — Thursday at 9:48 PM

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Device does exactly what it says it will do. Gets rid of the annoying AFM system.

Range fuel management system disabler

Reviewed by Chuck T (SILEX, MO) Reviewed for a 2010 Chevy Silverado — Thursday at 7:05 AM

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Researched before I purchased, does what it says. Truck runs in V8 mode full time, Extremely happy w/ performance and hope to avoid any of the problem with that motor the V4 mode is suspected of causing. My truck was bought new, now my daily driver, as 44,000 miles on it.

V8 Finally

Reviewed by William L (SENECA, IL) Reviewed for a 2013 Chevy Silverado — Wednesday at 6:55 PM

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Great device, keeps my truck in V8 mode all the time. No more annoying engine hunting up and down from 8 to 4 and back. Better for the torque converter too. Only took off points, because the light is annoyingly bright.

Wanted to avoid v4 mode works great!

Reviewed by Ryan L (SUMNER, IL) Reviewed for a 2008 Chevy Silverado — Tuesday at 1:33 PM

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Works perfectly, easily installed recommended to other silverado owners they bought it and they love it too fixed their lifter issues!

The Best

Reviewed by Michael B (DEVOL, OK) Reviewed for a 2012 GMC Sierra — Tuesday at 9:39 AM

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The best Jerry, the best.

Range Active Fuel Management Disable Device

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