Click on image to zoom

TCI377560 - TCI Shift Boss Transmission Programmer with Pressure Sensor

This product may require vehicle validation(s) for proper fitment. Please contact us to confirm correct vehicle fitment and usage.



TCI Shift Boss Transmission Programmer without pressure sensor
For use with GM 4L60E/4L65E/4L70E/4L80E/4L85E

All too often, performance street enthusiasts place emphasis on potential engine problems while critical transmission functions go unnoticed. Available for performance GM 4L60E/4L65E/4L70E/4L80E/4L85E applications, the new Shift Boss Transmission Programmer from TCI® is designed to ensure desired shift firmness while also monitoring the two most critical drivetrain functions - temperature and transmission line pressure.

The Shift Boss features three unique shift mode choices - Stock for OEM shift characteristics, Stage 1 for firm solid shifts and Stage 2 for hard strip shifts. You can monitor transmission temperature or pressure by simply depressing the display button. Simple-to-use and easy-to-install, this performance programmer can be considered an inexpensive, easy-to-install shift improver, and temperature/pressure monitor for your transmission.

This handheld unit includes a digital screen with selection options for transmission temperature, shift psi and all three shift modes.

Application List




Shipping Information

  • Item Requires Shipping
  • 11.2 lbs.

Trusted Specialists GM engine & parts specialists
Located in the USA Owned, operated, & employed
Need Assistance? Call us at 888-748-4655
Mon-Fri 8am-6pm EST
Have a Question Email us and we'll get back to you within 24 hours
Pace B2B