FREE SHIPPING & HANDLING!*
Order by 11 PM EST
for Same Day Shipping!
TCI Shift Boss Transmission Programmer
Product images may differ from actual product appearance.
For performance GM 4L60E, 4L65E, 4L70E, 4L80E and 4L85E applications, the TCI Shift Boss is designed to ensure your desired shift firmness while monitoring important drivetrain functions, including line pressure and temperature. Offers three shift modes: Stock, Stage 1, and Stage 2. The Shift Boss warns you of potential problems (e.g. transmission temperature is too high). Simple to install and use, this programmer can be considered inexpensive insurance to monitor and diagnose transmission problems.
Easy-to-read handheld unit with digital screen
Powerful data logging and self-diagnostic capabilities
3 shift modes: Stock for OE shift characteristics; Stage 1 for firm, solid shifts; Stage 2 for race shifts
Monitor transmission line pressure (890-377560 only) and temperature while adjusting shift firmness
Narrow Results for TCI Shift Boss Transmission Programmer
Over 50 years of experience delivering the best in High Performance Auto parts. JEGS has the knowledge and technical support staff along with 100% satisfaction guarantee. Our warehouse is filled with millions of name brand parts ready for same day shipping.
What You Want - When You Want It - At the Price You Want to Pay