https://hgmelectronics.com/
COMPUSHIFT Transmission Controllers | HGM Electronics
Control your 4L60E, 4L80E, 4R70W, E4OD or 4R100 transmission. Bluetooth/App enabled, US Made, Stunning Billet Waterproof Case. Check it out!
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https://www.usshift.com/
US Shift Stand-Alone Transmission Controllers
US Shift Electronic Transmission Control Systems let you take charge of your 6R80, 4R70W, E4OD, 4R100, 4L60E, or 4L80E transmission and unlock its true...
us shiftstand alonetransmissioncontrollers