Specifications

Perfect Fitment - Specifically designed as a replacement for partnumber 558-443, compatible with Holley EFI, Sniper EFI, Terminator X, HP EFI, and Dominator EFI platforms. Provides seamless ECU-to-laptop communication without extra adapters Live Data Access - Enables direct data logging, code reading, and live engine monitoring. Ideal for dyno tuning, street performance adjustments, or troubleshooting custom builds Extra-Long 8-Ft Reach - Extra-long cable provides flexibility to connect your laptop from inside the car, ensuring stable and interference-free communication in high-noise automotive environments .

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