Installation Time
(approx) 2 Hours
Difficulty Level:
Light to Moderate mechanical skill required.
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Features, Description, Q&A, Specs & Installation
High-Impedance. The Holley EFI LS1/LS6 Terminator X ECU utilizes the Bosch LSU 4.9 wideband sensor for accurate air-fuel ratio measurements. The included 3-1/2-inch LCD touchscreen provides intuitive navigation and real-time monitoring. With high-impedance injector drivers, it ensures optimal fuel delivery.
Real-Time Operation. The real-time fuel map learns and tunes feature allows you to fine-tune your engine for maximum power. Designed with four inputs (12V, 5V, ground, and frequency), it offers versatile connectivity options. The compact ECU side mounts make installation a breeze. Manufactured in the USA, this ECU guarantees quality and reliability.
Installation. Putting this LS1/LS6 Terminator X ECU on your ride is easy and requires no drilling. Professional installation is suggested.
Application. This Holley EFI LS1/LS6 Terminator X ECU has universal fitment.
Holley EFI 550-909
CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Installation Info
Installation Time
(approx) 2 Hours
Difficulty Level:
Light to Moderate mechanical skill required.
What's in the Box