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Black Friday Doorbuster Dominator Efi-ls2 Main Harness W/ Trans Control W/ev1 Injector Harness 550-658 Series [sTwOlZmq]

$133.99 $428.99 -69%

Dominator EFI-LS2 Main Harness for GM LS EnginesIntroducing the Dominator EFI-LS2 Main Harness, a comprehensive solution designed for GM LS 58x crank, 4x cam engines with a 4.8/5.3/6.0 style and EV1 injectors. This versatile harness is compatible wit

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Dominator EFI-LS2 Main Harness for GM LS Engines

Introducing the Dominator EFI-LS2 Main Harness, a comprehensive solution designed for GM LS 58x crank, 4x cam engines with a 4.8/5.3/6.0 style and EV1 injectors. This versatile harness is compatible with the 4L60/80E transmission, making it an ideal choice for those looking to upgrade their GM LS-powered vehicles. The Dominator EFI-LS2 harness is part of the Dominator EFI base kits, which offer a range of options to fit most popular domestic V8 engine applications, including LS, SBC/BBC, SBF, BBF, and Chrysler engines. With its robust features and seamless integration, this harness is sure to enhance the performance and efficiency of your engine.

Key Features and Specifications

The Dominator EFI-LS2 harness is packed with advanced features that make it a standout product in the market. It includes an integrated electronic transmission control that operates GM 4L60E and 4L80E transmissions, as well as Ford AODE and 4R70W models. This ensures smooth and efficient gear shifting, providing a more responsive driving experience. The harness also features integrated drive by wire throttle body control, allowing for the control of two drive by wire throttle bodies and compatibility with various brands such as GM, Chrysler, Ford, and Nissan. Key features include:

  • Integrated electronic transmission control for smooth gear shifting.
  • Drive by wire throttle body control for precise throttle response.
  • Individual cylinder fuel and spark control to unlock your engine's potential.
  • Multi-stage nitrous oxide control for enhanced performance.
  • Water/methanol injection control for precise tuning and cooling.

Practical Uses and Benefits

Whether you're a seasoned racer or a weekend warrior, the Dominator EFI-LS2 harness offers a wide range of practical uses. Its extensive amount of inputs and outputs allows for limitless combination of options, making it a versatile choice for any engine setup. The harness also includes a self-tuning fuel table strategy, which simplifies the tuning process and allows the system to learn and adapt as you drive. With features like quick start strategies and the ability to use common OEM sensors as well as custom sensor calibration input, this harness is designed to deliver optimal performance and efficiency. The Dominator EFI-LS2 harness is the perfect choice for anyone looking to take their GM LS-powered vehicle to the next level.

What Our Customers Say

January 3, 2026

Absolutely no complaints!

The performance is impressive and the design is sleek.

- Tristan K..

January 3, 2026

Absolutely no complaints!

Does the job better than anything I've tried before.

- Cooper L..

January 3, 2026

Absolutely no complaints!

The performance is consistently great and the product is built to last.

- Ileana R..

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