Electronic Transmission Controllers

Holley EFI GM F-Body T-56 Transmission Harness for Terminator X Max ECU   F-Body T-56 Transmission Harness for use with Terminator X Max ECU's on V3 Build 100, or Holley EFI V6 Build 300, or later.   F-Body T-56 Transmission Harness -...

Holley EFI GM T-56 Magnum Transmission Harness for Terminator X Max ECU  T-56 Magnum Transmission Harness for use with Terminator X Max ECU's on V3 Build 100, Holley EFI V6 Build 300, or later.   T-56 Magnum Transmission Harness - Terminated...

Holley EFI CAN to USB Dongle - 8' Communication Cable 558-443 Compatible w/ Holley EFI, Sniper EFI, and Terminator X Software The CAN to USB communication cable provides the user with real tuning time access to the ECU. This cable can be used...

Holley Sniper EFI Transmission Control Kit w/ 3.5" Handheld - For GM Carbureted Applications  For Carbureted applications - includes 3.5" Handheld. The Sniper Transmission Controller (STC) is designed for common GM and Ford electronic 4-speed...

Holley Sniper EFI Transmission Control Service Unit GM 4L60/70/80E  Service Part Only (Handheld not included) The Sniper Transmission Controller (STC) is designed for common GM and Ford electronic 4-speed transmissions. Three part numbers cover...

Holley Sniper 2 EFI Transmission Control Kit  For Sniper 2 based applications (Handheld not included) The Sniper Transmission Controller (STC) is designed for common GM and Ford electronic 4-speed transmissions. Three part numbers cover a...

Holley Sniper 1 EFI Transmission Control Kit  For Sniper 1 based applications (Handheld not included) The Sniper Transmission Controller (STC) is designed for common GM and Ford electronic 4-speed transmissions. Three part numbers cover a complete...

Holley Terminator X Max GM 6L80/90 Transmission Control Kit 558-499 For use with Terminator X MAX ECU's, requires Terminator X V3 Build 100 or later firmware. Add GM 6L80/90E transmission control to any existing vehicle utilizing a Terminator X Max...

HP Tuners PROLINK+ for MPVI2+ and MPVI3 Designed specifically for MPVI2+ and MPVI3, the PROLINK+ cable allows professional users to input 2x analog signals (from a wideband sensor, map sensor, boost pressure sensor etc.) and 1x CAN bus signal...

HP Tuners MPVI3 VCM Suite Built for enthusiasts and professionals – Introducing MPVI3 by HP Tuners, the fastest and most sophisticated OBDII interface device to date. Now standard with Pro Feature Set (PROLINK+ cable sold...

HP Tuners MPVI/MPVI2 Credits Click the link below for supported vehicles to determine the amount of credits needed. Please triple check to make certain that you've entered the correct serial # for your module. We will email application keys for MPVI 1...

FiTech Ultimate LS Transmission Control Harness 70050-5 Transmission control harness for FiTech Ultimate LS EFI Kits