Cable Specs
- • Part number: Holley 558-443
- • Connection: CAN Bus to USB-A
- • Length: 8 feet
- • Built-in USB CAN converter
Holley 558-443 CAN to USB Driver for ARM Laptops
The Holley 558-443 USB-CAN adapter is the standard tuning cable for HP EFI, Dominator EFI, Sniper 1, and Terminator X systems. Holley's stock driver does not run on ARM processors — iCANDrivers fixes that so you can tune from your MacBook or Snapdragon laptop.
Compatible Holley Software
Holley HP EFI
Holley HP EFI is a professional-grade engine management system designed for serious racing and performance applications with advanced tuning capabilities.
Holley Dominator EFI
Holley Dominator EFI is the ultimate engine management system offering unlimited tuning potential for the most demanding racing applications.
Holley EFI
Holley EFI is a comprehensive electronic fuel injection tuning software that allows users to configure and optimize their Holley EFI systems for maximum performance.
Holley Sniper EFI
Holley Sniper EFI software provides easy-to-use tuning capabilities for the popular Sniper throttle body EFI systems, perfect for carb-to-EFI conversions.
Holley Terminator X
Holley Terminator X tuning software offers advanced control for LS and LT engine management with plug-and-play harnesses and intuitive interface.
Holley Terminator X Max
Holley Terminator X Max delivers the ultimate LS/LT engine control with expanded I/O, dual wide-band support, and advanced transmission tuning.
Holley Terminator X LF
Holley Terminator X LF is the streamlined LS/LT engine management system with essential I/O for budget-conscious builds, tuned through the same Terminator X software.
Supported ARM Devices
- • All Apple Silicon Macs (M1–M5)
- • Snapdragon X Elite / X Plus laptops
- • Snapdragon 8cx Windows ARM devices
- • Browse all 146 supported devices →
Frequently Asked Questions
What is the Holley 558-443 cable?
The Holley 558-443 is an 8-foot CAN Bus to USB-A communication cable with a built-in USB converter. It connects your Holley ECU to a laptop for real-time tuning, diagnostics, and data logging.
Which Holley software works with the 558-443 cable?
The 558-443 works with Holley EFI, Holley HP EFI, Holley Dominator EFI, Holley Sniper EFI (Sniper 1), Holley Terminator X, Terminator X Max, and Terminator X LF tuning software.
Why doesn't the 558-443 work on ARM laptops out of the box?
Holley's official USB driver for the 558-443 CAN adapter does not support ARM or Snapdragon processors. iCANDrivers provides a custom driver that enables the cable on Apple Silicon Macs (via Windows 11 ARM VM) and native Windows ARM laptops.
Does Sniper 2 use the 558-443 cable?
No. Sniper 2 EFI uses the Holley 558-495 cable, which is a different adapter. iCANDrivers supports the 558-443 cable used by Sniper 1, HP EFI, Dominator EFI, and Terminator X.
Pick Your Device
Select your ARM laptop to get the right driver download and setup guide for your Holley tuning software.