This is the reprogramming device from AEV. It helps you reconfigure the tire size, gear ratio, steering wheel centering, running daylights, tpms etc etc...
I used it to disable my tpms but no longer need it. It has been restored to factory settings and ready to use.
(http://uploads.tapatalk-cdn.com/20160426/65da13a4aa33fdd9acacc7916f0f0a87.jpg)
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