HPF is pleased to offer upgrade services for the GM T87A TCM found in various 2017+ GM vehicles with 10-speed and 8-speed transmissions and 2015-2019 GM vehicles with the 6-speed transmission. This service is to UNLOCK YOUR EXISTING TCM. If you need us to provide a TCM and unlock it please email us.
Upon purchase ship the TCM to the following address:
HORSEPOWER FACTORY
7618 GREENSWARTH LN
HOUSTON, TX 77075