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Haltech Nexus S3 ECUs with Plug-and-Play Harness

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The Nexus S3 ECU is the successor to the acclaimed Elite 2500, offering a serious upgrade in performance and functionality. With advanced features, user-friendly in

The Nexus S3 ECU is the successor to the acclaimed Elite 2500, offering a serious upgrade in performance and functionality. With advanced features, user-friendly interface, and seamless connectivity, the S3 redefines the standard for engine management systems in the automotive industry. Haltech offers several ways to connect your S3 ECU.

If you are using a factory harness and are after an easy ECU upgrade, Haltech Nexus S3 ECUs with a plug-and-play adapter harness are excellent choices. They plug directly into the ECU and have a set of factory connectors on the other side which plug straight into the factory harness, allowing you to be up and running in just a few hours. The included quick-start guide will walk you through installation of the adapter harness into your vehicle. Select the Haltech S3 ECU and harness kit designed for your vehicle.

Kits include:

* Nexus S3 ECU
* Injection molded plastic plug-and-play adaptor harness
* M14 x 1.5 air temp sensor with matching plug and pins
* Auxiliary I/O 16-pin Tyco plug and pins