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    Range Active Fuel Management Disable Device - RA003

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    • Part #:
    • Disables Active Fuel Management
    • Does not reprogram ECU

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    Range Active Fuel Management Disable Device Part #RA003 Customer Reviews

    Average Rating

    606 Customer Reviews


    Reviewed by Austin L (OPELIKA, AL) Reviewed for a 2015 Chevy Suburban — Sep 15, 2017 12:54 AM

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    Since I bought my wife her Suburban, the AFM system was driving us crazy! It would kick in and out and cause a terrible exhaust drone that bothered everyone. Since purchasing the Range AFM Disable Device, we actually enjoy taking the Suburban out and getting constant and consistent V8 power. Gas mileage has stayed about the same @ 18.5 mpg but without the lag of the AFM kicking in and getting "tripped up" on itself and not shifting correctly. I highly recommend this product!

    Fuel Management Devive

    Reviewed by Chris H (ARTHUR, IL) Reviewed for a 2007 Chevy Silverado — Sep 14, 2017 8:21 AM

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    This worked exactly as advertised, much smoother driving without the changing from 8 to 4 cylinders and back to 8 again. I haven't driven much to tell the difference in mileage yet, driving to Florida in two weeks so will know more after that. I would expect oil consumption will go down as well. I would recommend this to anyone who has the fuel management system on their truck.

    Makes a difference

    Reviewed by Stephen M (AUBURN, NY) Reviewed for a 2011 Chevy Silverado — Aug 30, 2017 2:20 PM

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    Been using this for about two weeks now. Does make a difference. Also installed new plugs and wires because vehicle has over 100k miles. Runs like a new truck. Price seems a little high but product does what it's supposed to do. I would recommend to my friends.

    Range active fuel management disable device

    Reviewed by Daniel B (NEWBURGH, IN) Reviewed for a 2014 Chevy Silverado — Aug 29, 2017 1:27 AM

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    It does exactly what it is supposed to do and I have not had any problem with it or codes

    Works as advertised

    Reviewed by William O (CIBOLO, TX) Reviewed for a 2008 Chevy Tahoe — Aug 19, 2017 6:07 AM

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    Works as advertised and there's no noticeable reduction in gas mileage. No more stuttering from 4cyl to 8cyl modes on the highway. LED Lights are too bright for my taste but not a deal breaker.

    Great fix for the annoying AFM

    Reviewed by James S (PAOLA, KS) Reviewed for a 2011 Chevy Silverado — Aug 17, 2017 6:55 PM

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    I pull a 5300 lb travel trailer. Even in tow/haul mode the truck would lose power because of the AFM. I installed the Ranger AFM disable device the day after I received it and left for a camping trip (200 miles one way). There was a noticeable difference in power. No more 4-5000 rpm downshifts. Only a few times did it rev to 3500 rpm. I mostly drive with cruise control. I think that's the reason for the few 3500 RPM's.


    Reviewed by David E (GRAFF, MO) Reviewed for a 2007 GMC Yukon XL — Aug 15, 2017 9:01 PM

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    Worked just like you said and easy to install. Plug in and doesn't effect the engine light. Great!!!

    Great product

    Reviewed by Luke B (LANESBORO, MN) Reviewed for a 2011 Chevy Silverado — Aug 09, 2017 10:43 AM

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    Love the device I got. More noticeable power and better fuel mileage. Was skeptical buying at first but so far so good. No more hesitation going between 4 and 8 cylinders. Love it, only complaint is the blue led light on it.

    Easy Fix

    Reviewed by Patrick S (Grand Forks, ND) Reviewed for a 2010 Chevy Silverado — Aug 05, 2017 1:10 PM

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    This product is great, put it in at 80,000 miles after 3 sets of spark plugs. Runs great and should be the long term fix I was looking for. No more hesitation from 4 to 8 cyl and gas milage seams better in town for sure.


    Reviewed by Marcus M (Lynchburg, VA) — Aug 03, 2017 10:45 AM

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    Shifts better and more controlled take off. More quite engine.