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Chevy Silverado Range Technology Performance Chips & Programmers

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Latest Customer Reviews

Range Active Fuel Management Disable Device Reviews


Great fix for the annoying AFM

Reviewed By James S (PAOLA, KS) Reviewed for a 2011 Chevy Silverado —8/17/2017 6:55 PM

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.

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