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The Haltech NEXUS plug-and-play adapter harness provides a direct wiring solution for NEXUS S2/S3 installations. Built to simplify ECU hookups, this wire-in harness preserves factory connectors and routing while enabling a cleaner, faster installation. It’s intended for use with Haltech NEXUS engine management units and helps reduce splicing by matching the ECU’s connector layout for a professional wiring result.
Haltech NEXUS S2/S3 Plug-n-Play Adapter Harness
