Nexus R5 ECU + Universal V8 Terminated Harness

The Flagship V8 Management Solution

The Nexus R5 + Universal V8 Terminated Harness Kit is the absolute pinnacle of Haltech’s offering for V8 engines. This kit combines the flagship Nexus R5 VCU—the most powerful unit in the lineup—with a terminated engine harness designed specifically for GM LS, Ford, and Chrysler V8s. This system integrates comprehensive engine management, a robust PDM, dual wideband controllers, and massive data logging into one ecosystem.

Ultimate V8 Integration

The Nexus R5 VCU provides unparalleled I/O, including 18 injector drivers and 12 ignition outputs, easily handling complex race engines. The included Terminated Engine Harness simplifies the installation by providing a semi-plug-and-play backbone. While the main harness connects directly to the VCU, it requires specific sub-harnesses (sold separately) for injectors, ignition coils, and alternator, allowing the user to tailor the kit to their specific V8 platform (e.g., LS1 vs Coyote) without rewiring the entire car.

Operational Benefits

• Total System Control: Manages every aspect of the engine and vehicle power grid.
• Modular Harnessing: Adapts to various V8 engines via specific sub-harnesses.
• Flagship Features: Dual onboard widebands, 128MB logging, and high-current PDM outputs.

Fitment Guide

Engine Compatibility: GM LS, Ford Modular/Coyote, Chrysler Hemi (V8s)
Requires: Ignition, Injector, and Alternator Sub-Harnesses (Sold Separately)

Technical Specifications

Summary & What’s Included

The ultimate control package for high-end V8 builds.

Includes:

• Nexus R5 VCU
• Universal V8 Terminated Harness
• SurLok Connectors
• USB-C Cable
• Wi-Fi Antenna
• Note: Sub-harnesses required for completion.