Holley 550-603 Engine Control Module and Wiring Harness for LS2, LS3, and LS7 Engines

The Holley 550-603 engine control module (ECU) combined with a wiring harness is designed to optimize the performance of LS-Series GM engines including LS2, LS3, and LS7. This kit provides a reliable solution for engine management, featuring a 58x reluctor wheel for precise signal interpretation and compatibility with a variety of high-performance applications. The ECU's advanced tuning capabilities allow for improved fuel efficiency, power output, and drivability in custom and retrofit installations. The wiring harness ensures secure and organized electrical connections, simplifying installation and maintenance processes. Constructed with quality materials, this kit is suitable for both street and race applications, offering durability and consistent performance under demanding conditions.

Features:

• Engine Control Module (ECU) compatible with LS2, LS3, and LS7 engines

• Includes wiring harness for secure electrical connections

• s 58x reluctor wheel for precise signal detection

• Designed for high-performance engine tuning and management

• Reliable performance suitable for street and racing applications