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GMC Yukon XL Range Technology Performance Chips & Programmers

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Latest Customer Reviews

Range Active Fuel Management Disable Device Reviews

AFM Disable Device functionality

Reviewed By Alan S (CROSSVILLE, TN) Reviewed for a 2015 GMC Yukon XL —10/30/2015 8:37 PM

The device did exactly as described; plug it in and the AFM is immediately disabled. The only problem I am having with my device is it does not always work when starting the vehicle. I must unplug it from the port, wait a few seconds, and reinstall. This immediately brings it back to life. My fuel mileage is almost identical, and the vehicle operates much nicer now that the V4 does not engage.

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