Description
The Haltech NEXUS S3 (Part Number: HT-213000) is a high-performance engine control unit designed for racing applications. Engineered for motorsports enthusiasts, this ECU offers advanced tuning capabilities to maximize engine output and reliability. Its compact size and lightweight design make it an ideal upgrade for race cars seeking precise engine management without adding unnecessary weight. The NEXUS S3 provides seamless integration with existing vehicle systems, allowing for detailed customization and real-time data monitoring to optimize performance on the track.
The NEXUS S3 features a user-friendly interface for tuning and diagnostics, ensuring race teams can quickly adjust parameters for different racing conditions. This ECU includes comprehensive safety features and supports a range of sensors and actuators to enhance engine responsiveness and efficiency. Built with durability in mind, the NEXUS S3 withstands harsh racing environments, maintaining consistent performance during intense sessions.
Note that the NEXUS S3 is not CARB approved and is intended solely for race use, with EPA compliance marked as failed. It requires acknowledgment of CARB regulations prior to installation. Due to its specialized nature, this ECU is ideal for race teams and automotive professionals seeking a reliable, race-only engine management solution that delivers high-level control and customization for competitive motorsports.
Features:
- Advanced tuning capabilities for race applications
- Compact and lightweight design for easy installation
- Supports comprehensive sensor and actuator integration
- Real-time data monitoring and diagnostics
- Durable construction suitable for harsh racing environments
- User-friendly interface for quick adjustments
- Designed exclusively for race use, not CARB compliant




















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