Installation Time
(approx) 6 Hours
Difficulty Level:
Light to Moderate mechanical skill required.
Installation Guides
No guide available for this part yet.
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Features, Description, Q&A, Specs & Installation
Complete Engine Control. The Holley EFI Terminator X Max Fuel Injection System provides comprehensive management of your GM LS engine’s fuel and ignition systems. Designed to replace stock ECUs, this system features self-learning fuel strategies, customizable tuning, and configurable transmission control options that enhance drivability and performance for both enthusiast and professional applications.
Construction and Appearance. Engineered with performance-grade components, this EFI system features a durable black textured finish that ensures long-lasting reliability and wear resistance. Advanced electronics are housed within a compact, rugged enclosure designed for demanding engine bays.
Installation. Installation is straightforward for experienced automotive technicians familiar with GM LS engines, integrating with existing engine wiring and harnesses without requiring major modifications.
Fitment and Application. This system is compatible with multiple GM LS engine platforms, including the LS1 and LS6. Specific configurations and tuning settings allow it to fit a variety of vehicles, such as 1998 to 2002 5.7L Camaros, among others.
Emissions Compliance. This product is intended strictly for uncontrolled or non-emissions-controlled vehicles and is not legal for use on emissions-controlled vehicles.
Holley EFI 550-919
CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Installation Info
Installation Time
(approx) 6 Hours
Difficulty Level:
Light to Moderate mechanical skill required.
Installation Guides
No guide available for this part yet.
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