Holley EFI 550-658 Dominator EFI Kit - LS2 Main Harness with Trans Control and EV1 Injector Harness

★★★★★ 4.9 120 reviews

$3,449.95
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$3,449.95
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Product details

Management number 239947584 Release Date 2026/07/16 List Price $1,379.98 Model Number 239947584
Category

Compatible with GM® LS 58x Crank, 4x Cam - 4.8/5.3/6.0 Style Engines with EV1 Injectors, and 4L60/80E Transmission;<br><br>Dominator® EFI Vehicle Management Systems are intended for non-emissions street and racing engine applications. In addition to the transmission control, drive by wire, and dual wideband oxygen sensor options, Dominator® systems have nearly unlimited capabilities to control any power adder, input, or output you can throw at them. Need to run a turbocharged, NOS injected 8 cylinder running water-methanol injection? No problem with Dominator® EFI. How about control a 4L80E transmission as well as the fuel and spark on your street rod? No problem. There are also enough inputs and outputs to allow the Dominator® VMSs to serve as their own data acquisition and control module. The Dominator® VMS will eliminate the need for additional controllers as they are all contained in this one unit. The only thing limiting the Dominator® Vehicle Management System is your imagination!;

  • Dominator EFI base kits come in several product variations to fit most popular domestic V8 engine applications such as; LS, SBC/BBC, SBF, BBF, and Chrysler engines
  • Kits include the following: Dominator ECU, USB cable, ECU Power Harness, Engine Main Harness, EV1 Injector Harness, Bosch Wideband, ECU mounting hardware
  • Integrated electronic transmission control - Operates GM 4L60E and 4L80E transmissions, Ford AODE and 4R70W with more to come in the future
  • Integrated drive by wire throttle body control - Can control two drive by wire throttle bodies. Compatible with a number of DBW throttle bodies including GM, Chrysler, Ford, and Nissan
  • Integrated dual channel wide band oxygen sensor controls – For monitoring both engine banks (NTK or Bosch sensors)
  • Extensive amount of inputs and outputs allow for limitless combination of options. Allows for unit to be used as a complete data acquisition system as well
  • Individual cylinder fuel and spark control allows you to unlock your engine’s potential
  • 1-7 Bar MAP sensor capability – For naturally aspirated or boosted applications
  • Fuel Map and Learn Function Smoothing – Helps to smooth rough areas of the maps
  • Self-tuning fuel table strategy greatly simplifies tuning process – The more you drive it, the more it learns
  • “Quick Start” strategies – For faster engine starting
  • Allows for use of common OEM sensors as well as custom sensor calibration input
  • Two channel knock control sensor inputs for both one or two wire knock sensors
  • Store and select between four calibrations with Multi Map Selector (Part Number 558-407)
  • HARDWARE
  • ECU is fully potted and can be mounted in the engine compartment or interior – See images for dimensions
  • Sealed automotive and marine grade connectors
  • Optional Digital Displays - 7" Digital Dash (PN 553-106) / 3.5" Touch Screen LCD (PN 553-108)
  • 12.3" Pro Dash (PN 553-111) and 7" Race Dash (PN 553-106) features full gauge layout customization, and nearly limitless tuning options.
  • DATA VISUALIZATION TOOLS
Manufacturer part number 550-658
Vehicle make GM
Vehicle model LS2
Compatible cars GM LS 58x Crank, 4x Cam - 4.8/5.3/6.0 Style Engines with EV1 Injectors, and 4L60/80E Transmission
Brand Holley EFI
Features Adjustable
Vehicle fitment type Universal
Vehicle type Car
Has written warranty No
Accessories Dominator ECU, USB cable, ECU Power Harness, Engine Main Harness, EV1 Injector Harness, Bosch Wideband, ECU mounting hardware
Model 550-658

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