Ensure seamless integration and reliable performance with the Holley Dominator EFI J3 P3 Auxiliary Harness. Designed with precise dimensions of 26.40 cm by 25.90 cm and weighing only 0.54 kg, it delivers a compact, lightweight solution for your electronic fuel injection system. Explore how this harness elevates your ECU setup to the next level.

Ensure precise throttle control with this lightweight replacement hand controller designed specifically for Atomic Throttle Body EFI systems. Measuring 16.5 cm square and weighing just 0.23 kg, it integrates seamlessly into your electronic fuel injection setup. Discover how this exact fit component restores optimal performance.

Ensure seamless integration and reliable communication between your engine control unit and vehicle sensors with the Holley LS1 Main Harness. Precision-engineered at 38.60 cm by 37.30 cm, this harness supports HP and Dominator EFI ECUs, delivering optimized electronic fuel injection performance. Discover how this tailored harness enhances your fuel system's efficiency and responsiveness.

Optimize engine performance with precise electronic fuel injection control. This Holley DOMINATOR EFI ECU weighs 3.64 kg and measures 42.9 cm by 21.6 cm, engineered for seamless integration and reliable operation. Discover how advanced control can elevate your fuel system management.