Holley Dominator EFI ECU Only (HO554-114)
SKU: 22391222091

Holley Dominator EFI ECU Only (HO554-114)

Sale price$2949.30 Regular price$3277.00
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Description

Holley Dominator EFI ECU Only (HO554-114)HO554 114 DOMINATOR ECU ONLY EFI With USB & Software Part Number: HO554 114 Dominator EFI Vehicle Management Systems are intended for all engine applications, from street to unlimited high end racing 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

HO554-114 - DOMINATOR ECU ONLY EFI

With USB & Software

Part Number: HO554-114

Dominator EFI Vehicle Management Systems are intended for all engine applications, from street to unlimited high-end racing 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, nitrous injected 8 cylinder running water-methanol injection? No problem with Dominator EFI. How about control a 4L60E 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!
FEATURES:
Works with 4, 6, 8 and 10 cylinder engines
Ignition Plug and Play with GM LS engines (non-VVT), GM HEI, Ford TFI, and magnetic and hall effect trigger. Custom settings can be configured to allow for use with many other applications
Integrate d electronic transmission control - Operates GM 4L60E and 4L80E transmissions 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
Twelve sequentially driven 8:2 peak and hold injector drivers, capable of driving up to 24 low or high impedance injectors as a standard feature. Multiple staged injector strategies
Twelve channel Distributorless Ignition (DIS) outputs capable of directly driving “Smart” ignition coils or Holley DIS coils. Will drive 2 wire coils with the addition of PN 554-112 high current coil driver module
Speed density, Alpha-N, Alpha-N Combination, and VE fueling strategies – Tuner has the option to select from a variety of load sensing strategies to meet their engine requirements or tuning preference
Individual cylinder fuel and spark control allows you to unlock your engine’s potential
Unique lb/hr based fueling strategy greatly simplifies and commonizes tuning
Advanced idle, closed loop, and enrichment strategies allow for very stable engine operation
1-5 Bar MAP sensor capability – For naturally aspirated or boosted applications
Fuel Map and Learn Function Smoothing – Helps to smooth rough areas of the maps
Configurable User Password Protection – “Lock” your tune to prevent tampering
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
Dedicated fuel and oil pressure inputs
Controls both stepper and PWM Idle Air Control (IAC) motors
3 Rev Limiters – Choose between 4 options for each: Fuel Only, Spark Only, Fuel and Spark, or Soft
Traction Control – Allows power reduction via timing, nitrous percentage or boost (Requires Davis Technologies Holley Module)
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 5.7” full-color touc

Shipping Notes
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  • Except Preorder products are shipped in 48 hours.
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 22391222091

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kmehor
Phoenix, US
★★★★★ 4
Decent quality
Size: Medium, Color: Grey
It’s flatter than pictured but overall quality is great.
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Reviewed in the United States on March 27, 2026
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Renee M.
Lexington, US
★★★★★ 5
Comfy
Size: Medium, Color: Grey
Love it, has Velcro so doesn’t shift and when I took it out of vacuum bag thought it wouldn’t be good but after 24 hours puffed up and feels like soft memory foam. Perfect for a chair I have with a lower back. A big thumbs up January 25, 2025: I change this to a 4 star, after using there are white silk like strings coming off the material onto my hair. Not sure why!!!!!!!!
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Amazon Customer
Pawtucket, US
★★★★★ 5
Wish The Adhesive Pad Worked With Leather
Size: Medium, Color: Grey
The pillow is comfortable but the adhesive pad on it needed to be more sticky for leather. I still give five stars because they reached out and offered to help with a full refund, and asked for pictures to help identify the problem.
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Michael Kyle.
Draper, US
★★★★★ 5
Made a great pillow better.
Had an awesome pillow but if I didn't fluff it before going to sleep my neck would hurt the next morning. Ordered this and put about 70% into a cardboard box to expand then shoved it into my pillow. Its been great 👍 put the rest in another pillow. Had no scent. My pillows are king sized.
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Reviewed in the United States on May 8, 2026
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AgnesMarie Pezanetti
Los Angeles, US
★★★★★ 5
Great for refreshing old memory foam pillows
Our memory foam pillows are 2 years old and need a little refreshing. We purchased this and was able to refresh both pillows to firmer than new condition.
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Reviewed in the United States on April 15, 2026

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