MM3 Touch Display and MM3 Controller - Blank (2007.5-2021 Cummins 6.7L)This package allows custom tuners to develop their own tune files. The controller gives them full reign over their own content and the vehicles parameters, plus they get a nice touch screen display that can be used to adjust tunes, monitor gauges, clear codes, and much more. The MM3 platform can tune multiple trucks with one device (with the purchase of additional support packs & vin licenses).