
EFI Transmission Control Harness for GM 4L60E and 4L80E Pre-2009
This transmission control harness adds plug-and-play electronic control of pre-2009 GM 4L60E and 4L80E transmissions to a Holley Dominator or Holley EFI system, arriving fully terminated with a J4 connector.
Holley 558-405 Highlights:
- Fits 1996-2008 GM 4L60E and 4L80E transmissions.
- Works with Holley Dominator and Holley EFI systems.
- Plug-and-play, fully terminated harness.
- Includes the J4 transmission connector.
- Operates GM electronic transmissions.
Take your EFI System to the next level with the Dominator ECU
Holley Dominator EFI Vehicle Management Systems are engine management systems that can regulate any engine combination, from street to high-end unlimited racing. This system will control almost any input, output, or power adder you can think of, as well as function as a standalone data acquisition/control module. So, stop driving with multiple controllers and upgrade to Dominator ECU, providing your ride with complete engine management in a single unit.