- Home Page /
- Auto & Tires /
- Performance Parts /
- Performance Fuel, Carburetors and Intakes /
- Performance Fuel Injection /
- Holley EFI 550-917 Fuel Injection System
0 ratings
Item #:
28094816
Holley EFI 550-917 Fuel Injection System
Item #:
28094816
RON 11710
Price Details
Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )
*All items will import from US
0 ratings
Write a review
In stock
Imported from USA store
QTY:
Order now and get it around Sunday, August 09
Secured transaction
Ubuy works hard to protect your security and privacy. Our advanced payment security system ensures confidentiality by encrypting your information during transmission using AES (Advanced Encryption Standards) and SSL (Secure Socket Layer) protocols. Your payment details are 100% secure as we do not share your payment details with third party sellers.
Our Top Logistics Partners
Take control of your LS engine with Terminator X Max!
Fast
Shipping
Free
Return*
Secure Packaging
100% Original Products
PCI DSS Compliance
ISO 27001 Certified
Note: Step Down Voltage Transformer required for using electronics products of US store (110-120). Recommended power converters Buy Now.
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
- Holley EFI 550-917 Fuel Injection System for GM LS 4.8/5.3/6.0 Truck Engines
- Real-time fuel map learn for easy tuning
- High impedance injector drivers for safe power supply
- Integrated 1bar MAP sensor for accurate reading and tuning control
- 4 Inputs and 4 Outputs for additional accessories and controls
- Includes 3.5 in. touchscreen handheld for calibration and gauge display
| 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
Holley EFI 550-917 Fuel Injection System
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
No editorial reviews found
Customer Reviews & Ratings
1 customers ratings
-
5 Star
100%
-
4 Star
0%
-
3 Star
0%
-
2 Star
0%
-
1 Star
0%
Review this product
Share your thoughts with other customers
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
SJ
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
Secure Checkout
Global Delivery
Easy Returns
Genuine Products
Product Price History
Important information
- Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
- Not all the products listed on Ubuy are for sale, as Ubuy is a global search engine. Products are subject to export/trade regulations.
RON 11710
Order now and get it around Sunday, August 09
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:
Secured transaction
PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.
Our Top Logistics Partners
Fastest cross-border delivery
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
Ubuy Assurance
Experience worry-free shopping with 100% original products, PCI DSS-compliant payment security, ISO 27001-certified data protection, the fastest cross-border delivery, free returns *, and secure packaging on every order.