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
Advanced Fuel Injection Control. The Holley EFI Terminator X Max Fuel Injection System combines self-learning fuel strategies with precise tuning capabilities to manage GM LS engines effectively. It provides control over fuel delivery, ignition timing, and boost or nitrous systems tailored for diverse engine setups.
Construction and Appearance. This EFI system is built with durable materials designed to withstand demanding engine environments. It integrates a Bosch LSU 4.9 wideband sensor and high impedance injector drivers within a compact, rugged enclosure for reliable operation.
Installation. Installation requires mechanical skill but no specialized drilling. The system plugs directly into compatible LS engine wiring harnesses, streamlining integration and reducing the need for extensive modifications.
Application. Designed for compatibility with GM LS1 and LS6 engines featuring a 24x crank reluctor and supporting EV6 injectors, this system also supports 4L60E and 4L80E transmissions depending on configuration. It fits a broad range of LS engine applications and swaps, including 1997-2004 Corvette C5 models.
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.
What's in the Box