ATI -Simple Shift Automatic Transmission Controller
EV ZF Automatic Gearbox Controller 05: First Spin - YouTube
AMPEFI Transmission Controller with 4L60E Subharness
Chevrolet Performance Parts - 19332775 - CPP Automatic Transmission Controller Kit - For GM 4L60E, 4L65E, 4L70E includes controller, Harness, Software, USB cable
Powertrain Control Solutions - TCM2000 Transmission Controller