SKU: HLY550-660
UPC: 090127137208
MPN: 550-660
The Holley Dominator EFI Kit for LS2 with transmission controller and drive-by-wire is a complete engine management solution purpose-built for GM LS-series engine swaps and retrofits. Designed for enthusiasts and professional builders working with LS2 powerplants, this kit eliminates the complexity of standalone engine control by providing factory-level integration with modern drivability, fuel efficiency, and emissions control. Whether you're converting a classic muscle car, swapping an LS into a custom platform, or upgrading an existing LS2 installation, the Dominator EFI delivers the precision tuning and reliability expected in modern performance builds.
This comprehensive kit includes the Dominator ECU (Engine Control Module), integrated wiring harness, and transmission control harness that work in concert to manage fuel injection timing, ignition sequencing, and automatic transmission operation. The drive-by-wire capability replaces mechanical throttle cables with electronic control, offering faster throttle response and integration with modern auxiliary systems. The transmission harness enables seamless communication between engine and gearbox controllers, ensuring optimized shift scheduling and torque management across the entire power band. At 17.76 lbs, the system is compact enough for engine bay installation while the modular design accommodates various LS2 configurations and mounting scenarios.
Professional mechanics, experienced hot rodders, and serious engine swap builders benefit most from this plug-and-play approach—it reduces wiring complexity and tuning labor compared to standalone systems while maintaining full customization capability through Holley's industry-standard tuning software. The kit is compatible with LS-series engines and integrates with most modern transmission controllers, making it ideal for street rods, truck conversions, and performance restorations where factory integration is desired. Proper installation requires mechanical and electrical competency; professional installation is recommended for those unfamiliar with modern engine management systems. Shop TacticalSurplusUSA for competitive pricing and expert guidance on LS-series fuel system upgrades.
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