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- Holley EFI 550-917 Fuel Injection System
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Item #:
28094816
Holley EFI 550-917 Fuel Injection System
Item #:
28094816
MWK 6311525
Price Details
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Imported from USA store
QTY:
Only 99 items left in stock.
Order now and get it around Wednesday, September 02
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What Stands Out
Advanced Fuel Management
The Holley EFI 550-917 offers precise fuel delivery and management, optimizing performance and efficiency for enthusiasts and racers seeking reliable power across various driving conditions.
User-Friendly Setup
Designed for simplicity, the intuitive interface and plug-and-play installation minimize installation time and complexity, making it accessible for both experienced tuners and DIY enthusiasts.
Robust Data Monitoring
Equipped with comprehensive data logging and monitoring capabilities, users can easily track performance metrics in real-time, enhancing tuning precision and enabling informed adjustments for maximum output.
Product Details
- For GM LS 4.8/5.3/6.0 Truck Engines with 24x crank reluctor, Transmission Control, and Multec 2 Injectors
- Real-Time fuel map learn, takes the guess work out of tuning your base fuel table
- High Impedance Injector Drivers will safely power most Stock LS injectors, and Holley EFI Injectors
- On-Board 1bar MAP sensor, perfect for N/A or Nitrous engine combos
- 4 Inputs and 4 Outputs for additional pressure sensors, activation triggers, fans, boost control, nitrous control, etc.
- Includes 3.5'' full color touchscreen handheld with calibration wizard and data-logging capability
| Compatible cars | GM LS 4.8/5.3/6.0 Truck Engines |
| Vehicle make | GM |
| Vehicle model | LS 4.8, 5.3, 6.0 Truck Engines |
| Fuel injection accessory & part type | Fuel Injection System |
| Brand | Holley EFI |
| Automotive parts division | Performance |
| Vehicle fitment type | Specific |
| Items included | 24x LS Engine Main Harness - Multec 2 Injector Harness - 4L60E, 4L80E Transmission Control Harness - Terminator X MAX ECU - ECU Main Power Harness - Bosch LSU 4.9 Wideband Oxygen Sensor - Input, Output Harness - and assorted vacuum adapters. |
| Material | Multi |
| Accessories | 24x LS Engine Main Harness, Multec 2 Injector Harness, 4L60E/4L80E Transmission Control Harness, Terminator X MAX ECU, ECU Main Power Harness, Bosch LSU 4.9 Wideband Oxygen Sensor, Input/Output Harness, Assorted Vacuum Adapters |
| Series | Terminator X Max |
| Model | H19-550917 |
| Weight | 8.9 lb (4.04 kg) |
| Vehicle type | Motor Vehicle |
| Volts | 12 V |
| Multipack quantity | 1 |
Dangerous Goods
To avoid the delay in customs clearance process for Dangerous Goods, the shipment shall be opened at our warehouse facility to check the severity of hazardous components. Please see the list of Dangerous goods here.
Who Should Buy?
-
Performance Enthusiasts
Ideal for users seeking tuning flexibility and enhanced performance for high-output engines in modified vehicles.
-
Engine Builders
Great for builders wanting custom fuel tuning options to optimize engine efficiency and power output.
-
Racing Applications
Designed for competitive motorsport environments where precise fuel management can directly impact performance and results.
-
Casual Drivers
Not ideal for everyday drivers seeking simple and reliable fuel systems without extensive tuning requirements.
Product Description
About This Item
Introducing the Holley EFI 550-917 Fuel Injection System, the ultimate solution for maximum power and performance in your vehicle. This state-of-the-art system is specifically designed to deliver optimum fuel efficiency, throttle response, and engine control. With the Holley EFI 550-917, your vehicle will experience seamless fuel delivery, ensuring consistent power output and improved acceleration. Say goodbye to carburetor troubles and hello to reliable and precise fuel injection. This EFI system is perfect for enthusiasts, racers, and anyone looking to enhance their vehicle's performance.
Its advanced features include adjustable electronic fuel injection, programmable fuel tables, and real-time data logging. With these capabilities, you have complete control over your vehicle's fuel delivery and engine performance. Installation is a breeze with the Holley EFI 550-917. It comes with a comprehensive installation manual that guides you through the process step by step.
Plus, it is compatible with a wide range of engines, making it versatile and suitable for various applications. Whether you're upgrading your current fuel injection system or building a high-performance vehicle from scratch, the Holley EFI 550-917 is your go-to choice. It is designed and manufactured by Holley, a renowned brand in the automotive industry known for its quality and reliability. Don't settle for anything less than the best when it comes to fuel injection systems. Choose the Holley EFI 550-917 Fuel Injection System and experience the power, performance, and precision that your vehicle deserves.
Upgrade today and unleash the true potential of your engine.
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
Does it support low impedance injectors?
Answer: No, it does not support low impedance injectors. -
Question:
What accessories can it control?
Answer: It can control accessories such as fans, boost control, nitrous control, and IAC kit. -
Question:
Does it come with tuning software?
Answer: Yes, it comes with EFI Tuning Software for complete control.
Holley EFI Performance Fuel Injection Editorial Review
The Holley PCM/harness is receiving positive feedback from customers, with many praising its affordability and ease of installation. Customers have noted that everything plugged in easily and after a quick setup, the engine started learning and running smoothly. The tuning software is also regarded as user-friendly, with a free download available. While some customers have mentioned that the wires are of odd lengths and not vehicle-specific, overall, the product is highly recommended for those who do not want to engage a tuner or learn HP tuners. The install instructions are Considered great, and the harness is believed to be of good quality. Although the handheld could have a better resolution, it is still worth the price.
Customer Reviews & Ratings
8 customers ratings
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5 Star
75%
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4 Star
0%
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3 Star
12%
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2 Star
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1 Star
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Pros
- Affordable PCM/harness option
- Easy installation process with good quality harness
- User-friendly tuning software with a free download
- Engine started running smoothly after a brief setup
Cons
- Odd lengths of wires, not vehicle-specific
Platform Trust & Buyer Confidence
MA
Mohammad
Verified buyer
“Excellent quality and original too,when ubuy send original things I will appreciate that ,I very satisfied thank you”
23 July 2026 · via Trustpilot
CK
Chitra
Verified buyer
“The order and delivery progress was communicated very well. Package arrived within the estimated time. Products arrived as expected in good condition.”
22-Jul-26 · via Trustpilot
K
kund
Verified buyer
“Good supply of products. Safe payment methods, and shipment worldwide! Genuine products.”
23-Jul-26 · via Trustpilot
OO
Onesi
Verified buyer
“Was my first time buying a product from Ubuy, but I found it so helpful. This is reliable. Gonna place a new order!”
22 July 2026 · via Trustpilot
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SAO JOHN
Verified buyer
“Ubuy is a great online platform to buy stuff. Reliable, fast delivery time and great value for money. I've been using Ubuy online shopping platform for three years now and will continue to do so.”
23 July 2026 · via Trustpilot
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MWK 6311525
Order now and get it around Wednesday, September 02
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
QTY:
Only 99 items left in stock.
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Features & Benefits
- Real-time fuel map learn
- High Impedance Injector Drivers
- Supports most stock LS injectors
- Utilizes Bosch LSU 4.9 wideband for accurate tuning
- On-board 1bar MAP sensor
- Advanced tables for custom tuning
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