SKU: 34470908253

Dominator EFI-LS1 Main Harness w/ Trans Control w/EV1 Injector Harness 550-656

Sale price$1619.97 Regular price$1799.97
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Ships within 48 hours · Estimated delivery Jul 29 - Aug 3

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Description

Dominator EFI-LS1 Main Harness w/ Trans Control w/EV1 Injector Harness 550-656Fits GM LS 24x Crank, 1x Cam LS1 LS6 style Engines with EV1 Injectors, and a 4L60 80E Transmission 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

Fits GM LS 24x Crank, 1x Cam - LS1/LS6 style Engines with EV1 Injectors, and a 4L60/80E Transmission


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:
  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: 34470908253

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4.3 ★★★★★
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KK
Draper, US
★★★★★ 5
Economical, easy to install, and does the job!
Style: BE-182 1-Pack
First, depending on your car model, replacing your cabin air filter is VERY easy. With that out of the way, the shop wanted to charge almost 65 dollars to replace my cabin air filter. Decided to just buy one and do it myself. The only downside of waiting is that the air inside the car is not as fresh/clean when you're running your air. Anyways, you can usually get these kinds of filters between 20-45 dollars from auto part shops depending on the brand and features. I've used this brand and filter for the past 3 replacements on my car and they last just as long and filter just as well from my experience. No issues installing, and does in fact do a good job of filtering outside odors. Highly recommended for the price!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 16, 2026
S
Verified Purchase
Sam Meng
Grantham, US
★★★★★ 5
Great quality and noticed an immediate difference!
Style: BE-966H 1-Pack
Even though it’s not the OEM (original) filter, the quality is outstanding! It was easy to install and fits perfectly. I noticed a significant improvement in the air quality inside my car right away. Definitely a great buy!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 23, 2026
S
Verified Purchase
Seaner
Omaha, US
★★★★★ 5
Easiest DIY ever
Style: BE-157H 1-Pack
So a Toyota dealer will want $40+ to replace this filter, but for $10 and 2mins you can easily do this yourself. There’s a great 1:30 how-to vid on the YouTube, drop the glove box (one push) open the little door, remove old filter (note the arrow) and put in the new one, close door, close glove box, enjoy better flow and fresh air. This filter is a HEPA so it’s a performance upgrade over the OEM, fit is perfect, seems sturdier than the OEM, great value if you’ve got 2mins. Highly recommend. Thanks!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 23, 2025
K
Verified Purchase
Karen Michael-Pook
Draper, US
★★★★★ 5
Awesome Cabin Air Filter
Style: BE-151H 1-Pack
This product is not only cost efficient, it was also easy to install. The instructions in the package were helpful. I would definitely recommend using this filter for your 2017 Hyundai Sonata.
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Reviewed in the United States on May 13, 2026
M
Verified Purchase
milt loper
Lexington, US
★★★★★ 4
the "fit" is very precise
Style: BE-176H 1-Pack
Nice Fabrication, Good materials, perfect adhesive applications, "clean joints" etc. Appears to be a good UPGRADE from the stock Motorcraft product. CONs: The FIT was a "smidge TIGHT", and took very precise initial alignment and "pressure" to begin to slide into the rectangular hole. I measured the "Hole" at 7.375" wide, or (187.33 mm)... the FILTER is exactly the SAME. I would suggest maybe reducing the Width by 1 mm, to allow for an easier installation. The MOTORCRAFT uses an "open-cell" foam structure for the (2) Side pieces on their filter assembly, allowing some "compression to fit", of the Width, easing the difficulty of installation, yet still filling all voids. In summation, the "fit" is very precise. Not to be hurried or rushed, maybe a bit meticulous for the impatient or weak of heart.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 2, 2025

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