Pay in installments of $462.49 with
,
and
Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 17 - Jul 22
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
Dominator EFI-LS1 Main Harness w/ Trans and DBW w/EV1 Injector Harness 550-657Fits GM LS 24x Crank, 1x Cam LS1 LS6 style Engines with EV1 Injectors a 4L60 80E Transmission, and a DBW Throttle Body. 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
Fits GM LS 24x Crank, 1x Cam - LS1/LS6 style Engines with EV1 Injectors a 4L60/80E Transmission, and a DBW Throttle Body.
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 |
| Category Filter | Fuel Injection - EFI |
| Clearance Category | Fuel Injection - EFI |
| 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 | GM LS1/LS2/LS6 |
| 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 |
| 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
4.1 ★★★★★
Based on 27 reviews
Sort
Product Reviews
★★★★★ 4
Your dog Might Not Be as Excited as You Are
Size: Max Size
It arrived and worked as expected. Throws a good distance, not loud & easy to use. However, my rescue Belgian Shepherd (24/7 ball dog) was totally scared of it. Work with her for a week but she would literally avoid even being in the same room. Being she is rescue you never know what happen to them in the past. Moral of the story, just bc you have a full-on ball dog doesn’t mean they will be excited as you are. Unfortunately had to return.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 2, 2026
★★★★★ 3
Good but not great.
Size: Max Size-EPTU Balls
Good but not great. We had to return. We liked it first out of box BUT as soon as the balls got damp from grass and slobber they were not launching well.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 30, 2025
★★★★★ 5
Inside winter fun ball launcher
Size: Max Size
Bought this for our three dogs to play with in the winter as Houston is typically cold and rainy and limits outside play, this will be our new winter indoor activity. We are still in the learning process of putting the ball back in the launcher, we have only played with it a handful of times at most and they retrieve the balls back to the launcher but haven’t consistently put it back IN the launcher when there is a human at the launcher to do it for them. As we play with it more I know they will catch the concept along with the balls. Love that the product has three launching distances, indoor I’m using the short distance. Having 6 balls is also great, right now they are launching and rolling under the Christmas tree and my newly tri-pod dog cannot go under to get them. The ball launcher is super easy to use, I didn’t even have to look at the instructions. The design is nice and it is built very well. This launcher was a bit pricier than others but it had the best reviews. I used Amazon coupons, rewards and a gift cards and got it for zero dollars. Overall, I’m very happy with this product and the dogs have allot of fun with it and get excited when I bring it out. I have not had any problems with this product, the only slight thing to mention is that once about every 10 or more balls the launcher throws the next ball up will just sit, a little nudge from me or a dog will get that ball launching again. I have nudgers so this isn’t going to be a thing. We love this product and give it 10 of 10 stars. Should something happen I would buy this launcher all over again. May even consider as a gift for a family member with 7 dogs.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 10, 2025
★★★★★ 5
Poms approved
Size: Mini Size
My little Pomeranians love this. One loves to fetch so we got it for her but not my lazy boy has started fetching beside of this launcher. Cannot be more happier
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 25, 2026
★★★★★ 5
Exceeded expectations!
Size: Mini Size
This ball launcher has been the best thing we ever bought. We have a golden retriever who of course, like most goldens, is ball obsessed. I have thrown my fair share. I decided to see if my golden was smart enough to use this so we pulled the trigger. It took 3 days of on an off training and BAM! We are in business! This launcher has been a CHAMP! We've had it a month now and it has survived over and over of constant use. The balls are covered in pure slobber and nastiness but the machine keeps going. We do keep it plugged in and only use it indoors. Sometimes the ball does get stuck but it's easy to push it back through. The only complaint I have, and it's no fault to the company, but we are already on our 2nd pack of replacement balls. Honestly, it's been worth it. I probably should have purchased the bigger size but I didn't want to invest in it if he wouldn't use it. Definitely regretting it now!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 27, 2026