Installation Time
(approx) 30 Minutes
Difficulty Level:
Simple installation for anyone.
Installation Guides
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$224.95 each
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Features, Description, Q&A, Specs & Installation
Bluetooth EFI Communication. The Holley EFI Terminator X Bluetooth Module offers wireless communication with your EFI system, enabling real-time tuning and data monitoring. Designed for use with Holley's Terminator X and X Max systems, this module connects to Android devices running the Holley EFI app, giving users complete control without needing a laptop or USB cable.
Construction and Appearance. The module is housed in a compact, black casing with a rugged, OEM-style connector for a secure plug-in. Built with automotive-grade materials, it’s designed for durability under hood environments. The finish is sleek and professional, blending seamlessly with other Holley components.
Installation. Installation is simple and truly plug-and-play. No drilling or wiring modifications are required, making it a quick upgrade even for those with basic automotive knowledge.
Warranty. This product includes a 90-day limited warranty from Holley.
Application. This Holley EFI Terminator X Bluetooth Module fits universal applications compatible with Holley Terminator X and X Max EFI systems.
Holley EFI 558-483
CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Installation Info
Installation Time
(approx) 30 Minutes
Difficulty Level:
Simple installation for anyone.
Installation Guides
What's in the Box