Description
The Holley EFI CAN to USB Dongle Communication Cable – Part Number 558-443 provides a reliable connection between your laptop and Holley EFI-equipped vehicle, allowing real-time access to the ECU for tuning, setup, diagnostics and data monitoring.
Compatible with Holley EFI, Sniper EFI and Terminator X tuning software, this cable is ideal for making calibration changes, troubleshooting and monitoring ECU data.
Features
- Holley Part Number: 558-443
- Compatible with Holley EFI, Sniper EFI and Terminator X software
- Provides real-time ECU communication
- Suitable for tuning, diagnostics and data monitoring
- 8 ft communication cable for easy ECU access
- USB connection for compatible laptops and computers
Holley EFI tuning software can be downloaded free from the Support section of our website.































































































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