yourour Replacement for 558-443 CAN to USB Dongle Communication Cable Fits for Holley EFI, Sniper EFI, Terminator X (8-Feet)

The 558-443 USB Communication Cable is a precision-engineered solution for Holley EFI systems, including Sniper EFI, Terminator X, HP EFI, and Dominator ECU platforms. Designed for seamless CAN-to-USB communication, this cable eliminates the need for adapters or converters, allowing you to connect directly to your laptop for diagnostics, tuning, and performance optimization. With real-time data streaming and logging, you can instantly monitor engine parameters, troubleshoot issues, and fine-tune your vehicle for maximum efficiency and power. Whether on the dyno, at the track, or during a street build, this cable provides reliable access to your ECU.

The 8-foot extended length offers flexibility to operate comfortably from inside your vehicle, while the rugged PVC jacket and molded connectors ensure durability against heat, oil, dirt, and harsh automotive environments. Engineered for plug-and-play simplicity, the 558-443 cable allows you to focus on tuning, not setup. Just connect it to your EFI system, plug the USB end into your laptop, and launch the Holley tuning software. Upgrade your tuning workflow with the Holley 558-443 USB Communication Cablethe reliable, durable, and essential tool for any Holley EFI user.