Pay in installments of $412.49 with
,
and
Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 26 - Jul 31
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
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
4.8 ★★★★★
Based on 25 reviews
Sort
Product Reviews
★★★★★ 5
The stand DOES work! Amazing weight set! Perfect for beginners.
Style: 18lb, set of 6 with stand (Spring Bloom), Style: 18lb, set of 6 with stand (Spring Bloom)
When I got these for my beginner Pilates workouts, I absolutely loved everything about them except for the stand/rack (keep reading, the rack is actually awesome). The colors are so vibrant and beautiful and the material feels really good. The weights are 2lb, 3lb, and 4lb - this is perfect for a beginner like me who has never any used weights before. 4 lbs sounds light until you do your first 20 bicep curls ever - that’s when I realized they are perfect for my beginner level to build strength without hurting myself or flaring up my previous back and hip injuries. They have the hexagon type shape so they don’t roll away when you set them down. WELL I just couldn’t understand why the stand was pictured as an “A” shape and mine was “stuck” straight up and down so the weights had to be man handled to get them out of the rack. Or so I thought. Keep reading - I went back and I read through all the other reviews and didn’t see any other complaints about the stand, so I decided I had to take another look at mine. Well it turns out it was a user error. Lol. I wrestled with it trying to get a screwdriver under the handle to see if the screws needed to be loosened in order for it to slant in the “A” shape so the weights would come out more easily. I also tried to pull it really hard. Then I finally just grabbed one side of the stand and tried unscrew it to see if I could take it apart and rebuild it better. To my surprise - each side EASILY turned and clicked into place - with the weights FACING OUTWARD instead of inward. There’s plenty of space to get them out of the rack now! Watch the video I posted with this review to see how easy it is. Lol how embarrassing. But I know I can’t be the only one who thought they got a defective stand. Lol.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 18, 2024
★★★★★ 5
Perfect little set of weights
Style: Sage 5lb Pair
I really like these dumbbells for at-home workouts. The neoprene coating feels soft but secure, so I never worry about them slipping. They don’t clank around or chip like some metal weights I’ve owned in the past, and the flat edges keep them from rolling on the floor. I’ve used them for strength training, arm toning, and even light physical therapy exercises, and they’ve held up perfectly. The color is bright and makes it easy to find the right pair quickly. Great quality for the price, highly recommend!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 20, 2025
★★★★★ 5
Exactly what I was looking for
Style: 56LB, 10 pieces with rack
Exactly what I was looking for. The colors are super cute and the quality of the set is just as expected. It’s a perfect size and sits out in the open in my living room for convenience in a corner as if it belongs there. I just love it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 27, 2026
★★★★★ 5
Great Gift, Mom Loves Them
Style: 12lb, set of 6 with stand (Rosy Vigor)
Bought these as a gift for my mom and she really likes them. The neoprene coating feels comfortable to grip, and the weights are easy to handle and store. They look nice and feel well-made. A simple, thoughtful gift that she’s actually using - always a win.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 27, 2026
★★★★★ 4
Everything is perfect, minus the color bleeding
Style: Purple 3lb Pair
I love the feel of these in my hands, and the color selection! I only give 4 stars because if you have different colors touching (when they’re putting away) the darker colors will rub onto the lighter colors. My light green 5 lbs have stains from the purple 3 lb ones, so now I keep them spaced or out parchment paper between.
I have OCD about these things, so it either may not matter to others. But if it does, keep them separated haha.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 3, 2025