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TCI
Transmission Controller GM EZ-TCU, by TCI, Man. Part # 302820
Transmission Control Unit - EZ-TCU - 4L60 / 4L65 / 4L70 / 4L80 / 4L85E to 2009 / TCI 6X - Kit$1,025.95 -
CHEVROLET PERFORMANCE
Transmission Controller Kit 4L60E, by CHEVROLET PERFORMANCE, Man. Part # 19302405
Transmission Controller - Controller / Harness / Software Included - Programmable - 4L60E - Kit$1,681.13