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Must-have Holley 550-660 Dominator Efi Kit - Ls2 W/trans Contr & Dbw Bundle [35UcxXeQ]

$135.99 $435.99 -69%

Must-have Holley 550-660 Dominator Efi Kit - Ls2 W/trans Contr & Dbw Bundle [35UcxXeQ] Experience the ultimate in performance and control with the Holley 550-660 Dominator EFI Kit for LS2 engines. This comprehensive kit is designed to deliver unparalleled power and efficiency,

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Must-have Holley 550-660 Dominator Efi Kit - Ls2 W/trans Contr & Dbw Bundle [35UcxXeQ]

Experience the ultimate in performance and control with the Holley 550-660 Dominator EFI Kit for LS2 engines. This comprehensive kit is designed to deliver unparalleled power and efficiency, making it the perfect choice for serious enthusiasts and professional tuners alike. With its advanced features and robust build quality, this kit is a game-changer for any LS2-powered vehicle.

Product Specifications and Features

The Holley 550-660 Dominator EFI Kit is a complete package that includes an Engine Control Module, Wiring Harness, Transmission Harness, and Drive-By-Wire technology. This kit is specifically designed for GM LS-Series engines, ensuring a perfect fit and seamless integration. Here are some key features that set this kit apart:
  • Engine Control Module: The Dominator EFI Engine Control Module offers unparalleled precision and control, allowing for fine-tuning of engine parameters for optimal performance.
  • Wiring Harness and Transmission Harness: High-quality wiring harnesses ensure a reliable and efficient connection between the engine and transmission, minimizing electrical noise and improving overall system performance.
With this kit, you can expect enhanced throttle response, improved fuel efficiency, and a more responsive driving experience.

Practical Uses and Benefits

The Holley 550-660 Dominator EFI Kit is not just a product; it's a solution for those seeking to elevate their LS2-powered vehicle to new heights. Whether you're looking to improve your daily driver or prepare for a competitive racing event, this kit offers numerous benefits:
  • Increased Performance: Experience the power and responsiveness of a finely tuned engine with the Dominator EFI system.
  • Enhanced Fuel Efficiency: Optimize your fuel consumption for better mileage and reduced operating costs.
This kit is ideal for anyone looking to enhance their LS2 engine's capabilities, whether for personal enjoyment or professional competition. With the Holley Dominator EFI Kit, you're investing in a future of superior performance and reliability.

What Our Customers Say

January 1, 2026

Absolutely no complaints!

A very solid product, well worth the cost.

- Ingrid S..

January 1, 2026

Absolutely no complaints!

This is a solid and clever gadget.

- Tudur W..

January 1, 2026

Absolutely no complaints!

It's a really solid and impressive tool.

- Floyd B..

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