558-317 HOLLEY EFI Coyote Coil Harness Ford

Review HOLLEY EFI Ford Coyote Coil Harness for FORD

The Holley EFI 558-317 Coil Harness is a high-performance ignition system solution designed specifically for Ford Coyote engines. This harness is an essential upgrade for any enthusiast looking to maximize the potential of their Coyote-powered vehicle.

The harness features eight individual coil pack connectors, each capable of supplying a precise and consistent power output to the corresponding coil pack. This design not only ensures optimal ignition system performance but also simplifies the installation process, as each connector is color-coded and clearly labeled for easy identification.

Constructed from top-quality materials, this harness is built to withstand the rigors of high-performance applications. The wiring is made from a heavy-duty, shielded, and insulated design to minimize electrical noise and ensure reliable ignition system operation. Additionally, all connectors are sealed and protected against the elements, making this harness ideal for use in both street and racing applications.

The Holley EFI 558-317 Coil Harness is designed to integrate seamlessly with Holley EFI systems, as well as other popular engine management systems. This versatility allows for a wide range of applications and makes this harness an excellent choice for both DIY enthusiasts and professional installers.

With its simple plug-and-play design, this harness makes installation quick and straightforward. No more hours spent deciphering wiring diagrams or cutting and splicing wires. Instead, you can focus on enjoying the improved performance and reliability of your Ford Coyote engine.

In summary, the Holley EFI 558-317 Coil Harness is a must-have upgrade for any Ford Coyote engine. Its high-quality construction, ease of installation, and compatibility with various engine management systems make it a smart investment for anyone looking to get the most out of their engine.

The Holley EFI 558-317 Ford Coyote Coil Harness is a popular choice among Ford Coyote engine owners for its ability to provide a reliable and easy-to-install solution for managing the ignition system in their high-performance applications. Here are some pros and cons to consider before making a purchase.

1. Compatibility: This coil harness is designed specifically for the Ford Coyote engine, ensuring a perfect fit and easy installation.

2. Reliability: Holley is a well-known and trusted brand in the automotive performance industry, and this harness is built to withstand the demands of high-performance applications.

3. Simplified Wiring: The harness simplifies the wiring process by providing a pre-terminated and labeled harness, making installation quicker and easier.

4. Adjustability: The coil harness provides adjustable ignition timing, allowing for fine-tuning of the engine for optimal performance.

5. Flexibility: The harness can be used with various Holley EFI systems, providing flexibility for those looking to upgrade their ignition system in the future.

1. Price: The Holley EFI 558-317 Ford Coyote Coil Harness is a premium product, and the cost may be a limiting factor for some engine builders.

2. Complexity: While the harness simplifies the wiring process, it may still require some electrical knowledge to properly install and configure.

3. Limited Compatibility: The harness is specifically designed for the Ford Coyote engine, making it less versatile for those with different engine platforms.

In conclusion, the Holley EFI 558-317 Ford Coyote Coil Harness offers several advantages for those looking to upgrade their ignition system, including compatibility, reliability, and adjustability. However, the cost and limited compatibility may be a drawback for some. Ultimately, if you are looking for a high-quality, reliable ignition management solution for your Ford Coyote engine, this harness is a worthwhile investment.

Details:

Buyer pays return shipping. A signature is required on all ups orders over $750. 558-317 Ford coyote coil harness: 2011 to 2015 harness, for hp Efi dominate. Coil harness for 2011 to 2015 Ford coyote 5.0l engines.

specifications ignitioncomp:

• for makes: Ford
• brand: Holley Efi
• mpn: 558-317
• part type: Coil Harness
• upc: 090127713914

returns ignitioncomp:

• time: 30 days
• paid by: buyer
• policy: returns accepted

shipping ignitioncomp:

• service: ups ground
• type: fixed
• transit: 4-7 days
• class: standard
• carrier: ups

general ignitioncomp:

• category: Auto Parts > Car Truck Accessories > Ignition Systems Components

seller ignitioncomp:

• # reviews: 14954
• city: bowling green, kentucky
• rating: 98.8%

payments ignitioncomp:

• credit card: visa
• other
• wallet: paypal

offer ignitioncomp:

• availability: in stock
• started: may 31, 2025
• sold #: 18
• options: ship-to-home
• price: $224.95
• item condition: New
• in stock #: 5