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Description
Dominator EFI Kit - Universal Main Harness with EV1 Injector Harness 550-652Fits Domestic V8 engines, such as conventional push rod Chevrolet and Chrysler engines, with EV1 Injectors Features: 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 engines1 Kits include the following: Dominator ECU, USB cable, ECU Power Harness, Engine Main Harness, EV1 Injector Harness, Bosch Wideband, ECU mounting hardware2 Integrated
Fits Domestic V8 engines, such as conventional push rod Chevrolet and Chrysler engines, with EV1 Injectors
Features:
- 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 engines1
- Kits include the following: Dominator ECU, USB cable, ECU Power Harness, Engine Main Harness, EV1 Injector Harness, Bosch Wideband, ECU mounting hardware2
- Integrated electronic transmission control - Operates GM 4L60E and 4L80E transmissions, Ford AODE and 4R70W with more to come in the future3
- 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 Nissan4
- Integrated dual channel wide band oxygen sensor controls ? For monitoring both engine banks (NTK or Bosch sensors)5
- 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 well6
- Individual cylinder fuel and spark control allows you to unlock your engine?s potential7
- 1-7 Bar MAP sensor capability ? For naturally aspirated or boosted applications8
- Fuel Map and Learn Function Smoothing ? Helps to smooth rough areas of the maps9
- Self-tuning fuel table strategy greatly simplifies tuning process ? The more you drive it, the more it learns10
- ?Quick Start? strategies ? For faster engine starting11
- Allows for use of common OEM sensors as well as custom sensor calibration input12
- Two channel knock control sensor inputs for both one or two wire knock sensors13
- Store and select between four calibrations with Multi Map Selector (Part Number 558-407)14
- HARDWARE15
- ECU is fully potted and can be mounted in the engine compartment or interior ? See images for dimensions16
- Sealed automotive and marine grade connectors17
- Optional Digital Displays - 7" Digital Dash (PN 553-106) / 3.5" Touch Screen LCD (PN 553-108)18
- 12.3" Pro Dash (PN 553-111) and 7" Race Dash (PN 553-106) features full gauge layout customization, and nearly limitless tuning options.19
- DATA VISUALIZATION TOOLS20
- Data Logger ?Analyze and export your data with sophisticated, but user friendly tools ? Internal logger has 4 GB of memory21
- Strip Chart ? For real-time data viewing22
- Fully Configurable lap top Gauge Panel ? Life-like gauge cluster on your laptop screen23
- Racepak Integration Module Available.24
- Data logger - Smoothing, multiple graph view, pre-defined notes fields and more..25
- 8 STAGE NITROUS OXIDE CONTROL26
- Fully featured nitrous control eliminates the need for a separate nitrous controller device27
- Can be configured ?Wet? or ?Dry? with closed loop feedback28
- Progressive control based on time, RPM, or boost, requires part # 554-11129
- Lean or rich safety cutoff30
- Full timing retard/control configurability per stage based on RPM or time31
- INTEGRATED WATER/METHANOL INJECTION CONTROL32
- 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 industry33
- Allows for two nozzles to be controlled34
- Nozzles available from 400 to 1000 cc/min35
- Complete control of pump activation, and low system safety features36
- TURBOCHARGER BOOST CONTROL37
- Fully featured boost control capability eliminates the need for a separate boost control device38
- Can be configured to control boost based on time, gear, speed, and manual inputs39
- Gear based boost control configurable by several different methods40
- ?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 function41
Specs:
| Accelerometer Support | Yes |
|---|---|
| Boost Control | Yes |
| Brand | Holley EFI |
| CAN-BUS Support | Yes |
| Coast Guard Approved | Yes |
| Coil Per Cylinder Ignition Support | Yes |
| Datalogging Support | Yes |
| Dry Nitrous Control | Yes |
| e85 Support | Yes |
| EGT Support | Yes |
| Emission Code | 3 |
| Engine | Chevy Small and Big Block, Chrysler Small Block |
| Forced Induction Support | Yes |
| Fuel Filter Included | No |
| Fuel Hose Included | No |
| Fuel Injectors Included | No |
| Fuel Pressure Regulator Included | No |
| Fuel Pump Included | No |
| Grade Type | Performance |
| Height | variable 1.00" to 1.84" |
| Ignition Timing Control | Yes |
| Individual Cylinder Fuel Corrections | Yes |
| Intake Manifold Included | No |
| Knock Retard Support | Yes |
| Length | 13.14" overall |
| Mounting Bolt Pattern | 12.13"x 6.10" |
| Multi-Stage Nitrous Control | Yes |
| Product Type | Dominator ECU - ECM - VCM |
| Progressive Nitrous Control | Yes |
| Sale Category | Air and Fuel Delivery |
| Self-Tuning | Yes |
| Throttle Position Sensor Included | No |
| Traction Control Support | Yes |
| User-Tuneable | Yes |
| Warning | California Proposition 65 |
| Wet Nitrous Control | Yes |
| 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
4.5 ★★★★★
Based on 6 reviews
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Product Reviews
★★★★★ 5
comfortable and firm!!
Size: 57 Inch, Color: Light Grey, Size: 57 Inch, Color: Light Grey
this pillow is huge i’m 5’8 and it’s perfect, as soon as i laid down it relived pressure in my back, i get hot fast and you can feel the cooling silk like texture, it’s weighted aswell, as soon as i opened it, it fluffed up an it’s been about 2 hours since and it’s already huge, it says 24-48 hrs to fluff up fully but idk how much bigger it could get lol it’s definitely worth the few extra dollars
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Reviewed in the United States on April 14, 2026
★★★★★ 5
I must have for pregnant women! Definitely helps sleep and comfort for sleeping!!
Size: 57 Inch, Color: Light Grey, Size: 57 Inch, Color: Light Grey
I do love this pillow, it does take up a lot of space on my queen bed! But when I wrap my legs around the pillow, it gives me much relief on my back! It also has basically a built-in pillow so you don’t even need to use a pillow! I love that I was able to unzip the outer material and wash it! You can use it to sit up and support your back, and when the baby comes, you can use to help with feeding! sometimes I have to turn it completely on the other side if I want to turn over, it’s big!! heavy! Very soft! Not flat at all! Firmness is great! Height is great! I highly recommend! I’m also five months! i got it about 2 months ago!!
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Reviewed in the United States on February 13, 2026
★★★★★ 5
Buy this one!
Size: 65 Inch, Color: Light Grey
This was a great buy! I looked through many many different options before buying and this one was the one I chose. Definitely a good choice. It keeps its shape and is cool to the touch which is amazing for a hot sleeper. It helps so much with my sore hips being 7 months pregnant. Fits great on my queen size bed with room still got my partner to sleep comfortably as well. Definitely recommend!
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Reviewed in the United States on May 19, 2026
★★★★★ 5
Great pregnancy pillow!!
Size: 57 Inch, Color: Light Grey
I LOVE this pillow. It arrived quickly and was packaged very well. It was pretty squished when it arrived, but fluffed up very quickly! I didn't notice any odor when I unpackaged it. Love that the cover can just zip off for easy cleaning. It's helped a ton with my hip pain this pregnancy. It stays pretty cool, especially when compared to my normal pillow. First night I had it was the best sleep I've had in a long time and I look forward to laying down with it. Only bummer is it takes up quite a lot of room on the bed. I don't mind, but I do feel bad for my husband who I share with lol.
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Reviewed in the United States on May 17, 2026
★★★★★ 4
good
This pregnancy pillow feels really comfortable and provides good support while sleeping. It is a bit bulky, so sometimes I switch back to my regular pillow, but overall, it still feels really good and helps me get more comfortable at night.
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Reviewed in the United States on May 11, 2026