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Marietta Performance Chips

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Latest Customer Reviews

Range Active Fuel Management Disable Device Reviews


great so far

Reviewed By Robert M (CLINTON, LA) Reviewed for a 2009 Chevy Silverado —8/26/2015 5:12 PM

bought this device after talking with guys at work about oil usage and possible engine problems. also was pulling a 20'trailer in trailer mode on transmission and noticed engine was in v4 mode. installation was simple and v8 mode stays on. no change on fuel mpg.

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Range Active Fuel Management Disable Device Reviews


Works Great

Reviewed By Tony S (SAN MARCOS, CA) Reviewed for a 2013 Chevy Tahoe —8/26/2015 12:33 AM

The device does what it says. It disables the AFM and takes away the hesitation and the sluggishness. I used to have a 2005 NBS Tahoe and I regretted exchanging it for a 2013 NNBS Tahoe due to the sluggishness caused by the AFM. Now I am enjoying the newer truck due to more responsive throttle. I did notice a loss of 0.5 MPG but it's worth it for the truck to not feel like a big slug.

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Range Active Fuel Management Disable Device Reviews


Save money and get more power, BUY THIS

Reviewed By John D (SIMI VALLEY, CA) Reviewed for a 2012 GMC Sierra —8/25/2015 8:37 PM

I am up one mpg after one month of owning the range AFM disable and I also love the on demand power my Sierra was meant to put out. Not to mention this has also fixed a few hard shifting issues as well!! Thanks Range! Looks great too, has a cool looking blue light and looks very clean.

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