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These Holley EFI Smart Coils are a bolt-in ignition upgrade for your late model HEMI or Coyote engine. Here's the difference over a stock coil; they produce more spark energy while consuming less power without sacrificing voltage output. This means you get hotter spark at the plug to burn the maximum amount of fuel in each cylinder while using less power from your electrical system.
For Coyote or Hemi combinations currently using Holley EFI or Terminator X, use Smart Coil Ignition Harnesses 558-312 & Coil Extension Harnesses 558-326 for a plug and play solution.
For new Holley EFI installations on Coyote engines, use with Holley EFI Coyote TI-VCT Main Harness for Smart Coils 558-122 & Smart Coil Ignition Harness 558-312 for a plug and play solution.
Features:
- Direct bolt-on to factory valve covers
- Same wiring pinout as other IGN-1A coils for easy plugin upgrades (Will not work with factory wiring)
- More spark energy than any other smart coil on the market for maximum fuel burn during combustion sequence
- Low current draw means less demand on the electrical and charging system
- Built-in ignitor for compatibility with Holley EFI and many other aftermarket ECU's
- Maximum operating voltage of 18 volts ? for compatibility with both 12 volt and 16 volt electrical systems found in many performance/race applications
⚠ WARNING:
Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov
Holley EFI is a division of Holley that is one of the best aftermarket brands in the automotive industry. Holley EFI is a company known for producing high-performance parts specifically electronic fuel injection system parts. The company’s history can be traced back to the late 1800s when brothers George and Earl Holley learned how to make pattern casting that enabled them to build one-cylinder engines. Then in 1903, they provided Henry Ford with the carburetor and became the industry leader in fuel system technology. The rest is, as they say, history.
Fuel System ExpertsFor over a century, Holley EFI has always been at the forefront of designing parts for the fuel delivery system. From electronic fuel injections kits and fuel system accessories, Holley EFI has it all. Today, Holley EFI is considered one of the top aftermarket brands in the world.
Being Part Of HistoryNot everyone is aware that Holley provided fuel systems components for the military during WWII, and it is not for automobiles but planes and boats. Since then, the company has become a dominant force when it comes to fuel delivery system components and has been used by many champion racers and enthusiasts.
Choice Of ChampionsSince the 1960s, Holley has powered every NASCAR sprint cup car and every winning NHRA Pro Stock Team even today. It is a testament to the kind of products the company produces.
Purchase Holley Products At Vivid RacingIf you are in the market for high-quality fuel delivery system components for your vehicle, then choose the best brand out there, and that is Holley EFI. Not every company can boast 100 years of experience.
To know more about Holley EFI, visit Vivid Racing and check out their list of products that fit your specific requirement.
Holley Performance Products warrants its Holley Street Avenger™ Carburetor to be free from defects in material and workmanship for the life of the product on parts and one year on repair labor. After a period of one year, Holley will charge standard rates for repair labor. For any Holley Street Avenger Carburetor used in any type racing or off-road use will only be covered by a one (1) year limited warranty on parts and labor. Warranty performance will be initiated by returning the alleged defective product to HOLLEY PERFORMANCE PRODUCTS with the original, dated purchase receipt. Purchaser is to call toll free the Holley Factory Service number at 1-866-464-6553 to receive details and shipping instructions.
For full warranty information please Click Here
| Sale price | None |
| Wholesale price | $707.95 |
| Shipping |
Weight: 10.51 Length: 23 Width: 4 Height: 11 |
| Product Added At | Wednesday 23 March, 2022 |
| Product Modified At | Thursday 10 July, 2025 |
| Imported By | ETLOverride |
| Last Edited By | vendordata@vividracing.com |
| View In Admin |
| Vendor | Inv | Cost | Retail | Jobber | MAP | Core | Updated | |||
|---|---|---|---|---|---|---|---|---|---|---|
| Holley Performance Products Inc. | $599.96 | $899.95 | ? | $799.95 | ? | 2025-07-10 19:13:18 |
