SKU: 96745550900

Holley EFI Lightweight Dominator ECU 554-114LW

Sale price$1192.47 Regular price$1324.97
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Description

Holley EFI Lightweight Dominator ECU 554-114LWThe new standard in EFI with virtually unlimited capabilities! Features: Lightweight ECU potting reduces overall ECU weight by 1. 8 LBS or 34% (3. 53 LBS) ? Perfect for applications where saving every oz is mission critical1 Works with 4, 6, 8 and 10 cylinder engines2 Ignition Plug and Play with GM LS engines (non VVT), GM HEI, Ford TFI, Coyote (non VVT), 4. 6 5. 4 Mod Motor, Late Model HEMI and magnetic and hall effect trigger. 3 Custom settings can

The new standard in EFI with virtually unlimited capabilities!


Features:

  • Lightweight ECU potting reduces overall ECU weight by 1.8 LBS or 34% (3.53 LBS) ? Perfect for applications where saving every oz is mission critical1
  • Works with 4, 6, 8 and 10 cylinder engines2
  • Ignition Plug and Play with GM LS engines (non-VVT), GM HEI, Ford TFI, Coyote (non-VVT), 4.6/5.4 Mod Motor, Late Model HEMI and magnetic and hall effect trigger.3
  • Custom settings can be configured to allow for use with many other applications4
  • Integrated electronic transmission control - Operates GM 4L60E and 4L80E transmissions, Ford AODE and 4R70W with more to come in the future5
  • 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 Nissan6
  • Integrated dual channel wide band oxygen sensor controls ? For monitoring both engine banks (NTK or Bosch sensors)7
  • 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 well8
  • 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 strategies9
  • 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 module10
  • 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 preference11
  • Individual cylinder fuel and spark control allows you to unlock your engine?s potential12
  • Unique lb/hr based fueling strategy greatly simplifies and commonizes tuning13
  • Advanced idle, closed loop, and enrichment strategies allow for very stable engine operation14
  • 1-7 Bar MAP sensor capability ? For naturally aspirated or boosted applications15
  • Fuel Map and Learn Function Smoothing ? Helps to smooth rough areas of the maps16
  • Configurable User Password Protection ? ?Lock? your tune to prevent tampering17
  • Self-tuning fuel table strategy greatly simplifies tuning process ? The more you drive it, the more it learns18
  • ?Quick Start? strategies ? For faster engine starting19
  • Allows for use of common OEM sensors as well as custom sensor calibration input20
  • Two channel knock control sensor inputs for both one or two wire knock sensors21
  • Dedicated fuel and oil pressure inputs22
  • Controls both stepper and PWM Idle Air Control (IAC) motors23
  • 3 Rev Limiters ? Choose between 4 options for each: Fuel Only, Spark Only, Fuel and Spark, or Soft24
  • Traction Control ? Allows power reduction via timing, nitrous percentage or boost (Requires Davis Technologies Holley Module)25
  • Store and select between four calibrations with Multi Map Selector (Part Number 558-407)26
  • HARDWARE27
  • ECU is fully potted and can be mounted in the engine compartment or interior ? See images for dimensions29
  • Sealed automotive and marine grade connectors30
  • Optional Digital Displays - 7" Digital Dash (PN 553-106) / 3.5" Touch Screen LCD (PN 553-108)31
  • 12.3" Pro Dash (PN 553-111) and 7" Race Dash (PN 553-106) features full gauge layout customization, and nearly limitless tuning options.32
  • DATA VISUALIZATION TOOLS33
  • Data Logger ?Analyze and export your data with sophisticated, but user friendly tools ? Internal logger has 4 GB of memory35
  • Strip Chart ? For real-time data viewing36
  • Fully Configurable lap top Gauge Panel ? Life-like gauge cluster on your laptop screen37
  • Racepak Integration Module Available.38
  • Data logger - Smoothing, multiple graph view, pre-defined notes fields and more..39
  • 8 STAGE NITROUS OXIDE CONTROL40
  • Fully featured nitrous control eliminates the need for a separate nitrous controller device42
  • Can be configured ?Wet? or ?Dry? with closed loop feedback43
  • Progressive control based on time, RPM, or boost, requires part # 554-11144
  • Lean or rich safety cutoff45
  • Full timing retard/control configurability per stage based on RPM or time46
  • INTEGRATED WATER/METHANOL INJECTION CONTROL47
  • Uses Holley water/meth solenoids specially designed and calibrated for use with this EFI system to allow the user to enter water/meth flow as a percentage of fuel injector flow for water/meth tuning precision unmatched in the industry49
  • Allows for two nozzles to be controlled50
  • Nozzles available from 400 to 1000 cc/min51
  • Complete control of pump activation, and low system safety features52
  • TURBOCHARGER BOOST CONTROL53
  • Fully featured boost control capability eliminates the need for a separate boost control device55
  • Can be configured to control boost based on time, gear, speed, and manual inputs56
  • Gear based boost control configurable by several different methods57
  • ?Boost Builder? functions offer the ability to assist building boost on the starting line by altering ignition timing, fueling, as well as nitrous oxide activation. Can also be used as an anti-lag function58
  • INPUTS AND OUTPUTS59
  • 13 - ?Multi-Inputs? ? Can be configured as a 0-5V sensor input, 0-20v sensor input, thermistor temperature input, or high or low voltage input61
  • 30 - 0-5V Sensor Inputs ? Configures any 0-5V sensor as well as some can be used as switched high or low inputs62
  • 4 - Speed Inputs ? Can be configured as a digital (square wave) input or an inductive input63
  • 20 - 12v PWM Outputs ? Can be configured as PWM or switched 12V outputs. Rated at 2A maximum64
  • 16 - Ground PWM Outputs ? Can be configured as PWM or switched ground outputs. Rated at 2A maximum65
  • All inputs and outputs are programmed using innovative new ?Pin Mapping? strategy that allows inputs and outputs to be pinned as desired by the user, allowing for inputs and outputs to not be ?wasted? by non-used dedicated functions66
  • Configurable for: dual cooling fans (including brushless fans that require PWM signal), dual fuel pumps, AC inputs, basic TCC lockup, and multiple timing retard inputs67
  • User programmable caution and warning outputs for all sensors68
  • ADVANCED TUNING ICF69
  • Fully User Configurable tables, 1D, 2D, 1D Per Gear, 2D Per Gear71
  • Tables allow for virtually unlimited dimensional tuning of fuel, spark, boost, nitrous and more72
  • User can modify fuel, timing, boost, nitrous, individual cylinder, ignition dwell, DBW, and more73
  • Parameters can be adjusted based on any input, sensor, or time.74

Specs:

Brand Holley EFI
Coast Guard Approved Yes
Emission Code 3
Grade Type Performance
Height variable 1.00" to 1.84"
Length 13.14" overall
Mounting Bolt Pattern 12.13"x 6.10"
Mounting Hardware Included No
Mounting Hole Quantity 4
Product Type Dominator ECU - ECM - VCM
Removable PROM No
Sale Category Air and Fuel Delivery
Warning California Proposition 65
Width 6.10" overall

Application:

Year Make Model Submodel
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
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: 96745550900

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Cmk
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★★★★★ 5
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Special Size: Standard, Size: Large, Color: Plaid-light Blue
I can't believe the quality of this shirt!! I ordered the blue checked one for my husband for a costume. The price was right and I didn't expect much, as it was just for a costume. It came packed into a little box, which I figured showed it would be super thin and cheaply made, but didn't really care as only needed it for one time. Woah!!!! I opened the box and was absolutely floored by the quality and heft to the material. It is crazy. I don't know how they get this shirt into that box, but it is baffling. This shirt is of high quality, with all the seems sewn well. The fabric is every bit as good as the brand of oxford shirt that costs 3 times the price of this one. My husband goes between medium and large. He takes 16" neck in dress shirts. We ordered the large and it fits well. Has a little room, but not in a too big type of way. I washed it once before wearing, and it washed well. Not much shrinking at all. It ironed very easily without a problem. Yes, it is 100% percent cotton. Because of the quality and fit, I will now order additonal colors. My husband loves this shirt. This is an excellent buy!!!
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Reviewed in the United States on August 30, 2025
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Kindle Customer
Houston, US
★★★★★ 5
Great shirt!
Special Size: Standard, Size: X-Large, Color: Dark Green
My partner loves this shirt and is very particular. He likes the green color and that it is cotton. Bought more colors from this company. Runs true to size.
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Reviewed in the United States on June 1, 2026
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Emmanuel
Battle Creek, US
★★★★★ 5
Amazing quality 11/10
Special Size: tall, Size: XX-Large Tall, Color: Aroyal Blue
It’s an amazing quality shirt. White is bright, not a single thread, all folds are just perfect. I can’t believe I got this quality for this price 🙌
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Reviewed in the United States on May 23, 2026
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Joseph
Charlottesville, US
★★★★★ 3
Not too bad for the cost but could be better.
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I like the shirt. It fits well and color is as described. Main reason for 3 stars is that they do a lousy job with sewing on the buttons.
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Reviewed in the United States on May 9, 2026
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Michael Forrester
Charlottesville, US
★★★★★ 5
Great Shirt
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