Elite 550 & 750 Premium Universal Wire-in Harness — 2.5 m (8')

Designed for high-performance builds, this Premium Universal Wire-in Harness is ideal for dedicated race cars, engine swaps, and custom wiring projects. It pairs seamlessly with Haltech Elite ECUs to deliver precise, configurable control over your engine management system.

Configuration at a glance: one end features a set of ECU connectors while the opposite end leaves unterminated wires. All wires at the unterminated end are colour coded and clearly labelled to match the detailed wiring diagram, ensuring a confusion-free installation process.

How it works: connect the terminated end to your Haltech Elite ECU, follow the wiring diagram to map every engine sensor and actuator, and load your base map to be ready for initial startup and tuning.

Documentation and references: the wiring diagram is accompanied by the full ECU manual and software located on the CD or USB key provided with the ECU, giving you comprehensive guidance during installation and configuration.

Key advantages

• Colour coded and labelled wires that align with the detailed diagram, reducing installation errors during engine swaps and race builds.
• Full compatibility with Haltech Elite ECUs to enable fully programmable fuel and ignition timing for optimized power output under all operating conditions.
• Clear, map-driven wiring process that simplifies routing from sensors to actuators and connections to the ECU.
• 2.5 m (8') length provides flexible routing around tight engine bays and custom vehicle layouts.