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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:
- 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
4.6 ★★★★★
Based on 1686 reviews
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Product Reviews
★★★★★ 4
Nice shoes, despite the squeak and inconsistent sizing
Size: 12, Color: Black White 05
Excellent shoes at this price point. Quite comfortable. They do tend to have a nasty squeak on tile floors, sort of like a suction cup being engaged and disengaged.
I bought the navy blue and went back and bought the black. I have to say that the size varied greatly. With the second pair, I have to be sure to wear thin socks and even then, I struggle to get them on, despite having an extremely narrow foot. I'm not sure that a person with an average width foot could wear them. Buyer beware. You may need to go up a size.
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Reviewed in the United States on February 13, 2026
★★★★★ 5
My second pair and what they look like after 2 years
Size: 10.5, Color: New Black05, Size: 10.5, Color: New Black05
I wanted to write a review on these shoes. This is my second purchase. I bought the first pair 2 years ago and the bottoms started wearing out, after all it was 2 years. I read reviews saying that they did not hold up well. My pictures show before and after. The reason I purchased again is because I am impressed with the quality and comfort for the money.
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Reviewed in the United States on May 9, 2026
★★★★★ 3
Comfortable at First, But Did Not Last Long
Size: 9.5, Color: Cs05 White
I used these Feethit men’s slip on running shoes for about six months, and my experience was a bit mixed.
Starting with the positives, they are pretty comfortable right out of the box. They are lightweight and easy to slip on, which makes them great for quick trips or casual everyday wear. The fit was true to size for me, maybe even a little on the loose side, which I did not mind for a relaxed feel.
However, the durability just was not there. After about six months, I started to notice wear and tear, and eventually I got a tear in the sole right under my heel. That made them really uncomfortable to walk in, especially for longer periods. Once that happened, it was basically game over for using them regularly.
Because of that, I would not recommend these for heavy use, workouts, or long days on your feet. They seem better suited for light, occasional wear rather than something you rely on daily.
Overall, they are comfortable and easy to wear at first, but they do not hold up over time. If you are looking for something long lasting, you may want to look at other options.
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Reviewed in the United States on March 23, 2026
★★★★★ 1
Won’t Fit No Matter What
Size: 9.5, Color: Cs05 White, Size: 9.5, Color: Cs05 White
These shoes don’t stretch so I was unable to get my foot in the shoe. They are my size, but the opening has no stretch so you can’t get your foot in the shoe. I tried several different ways and then realized even though the shoe is the correct size, the opening was too small. They made the opening for the shoe probably the same size on all shoes, so unless you have kids feet you won’t even be able to slide them on. I’ve never had a shoe I couldn’t get on. I’ve worn Sketchers no problem. This is design flaw and I highly recommend you don’t buy!
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Reviewed in the United States on April 19, 2026
★★★★★ 5
Really comfortable!!!
Size: 11, Color: New Black05
These tennis shoes are so comfortable!!!
I would recommend anybody to get these, especially if you do a lot of walking they’re very light but have a good heal support and the soul is nice and soft and cushy..
They’re also so cute. I got the blue ones and red also.
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Reviewed in the United States on April 6, 2026