Installation Time
(approx) 30 Minutes
Difficulty Level:
Mechanical expertise or professional installation required.
Installation Guides
No guide available for this part yet.
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$749.95 set of 8
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Features, Description, Q&A, Specs & Installation
High-Energy Ignition. The Holley EFI Smart Coil for Holley EFI or Terminator X; Set of 8 is a performance ignition upgrade designed to deliver increased spark energy with lower power consumption. It provides a hotter spark that enhances combustion efficiency for better engine performance and responsiveness in late model HEMI and Coyote engines.
Construction and Appearance. These smart coils are built with durable materials and feature a sleek black finish that offers both a professional look and resistance to heat and vibration. They support high-voltage operation up to 18 volts, ensuring reliable performance in demanding automotive environments.
Installation. Installation is straightforward with a direct bolt-on design to factory valve covers requiring no drilling. They require compatible wiring harnesses for plug-and-play integration. This process is user-friendly for professional installation on supported engines.
Warranty. This product includes a manufacturer-backed warranty to ensure quality and performance longevity.
Application. Specifically engineered to fit 2006-2023 5.7L HEMI and 6.4L HEMI Charger engines without modification.
Holley EFI 556-163
CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Installation Info
Installation Time
(approx) 30 Minutes
Difficulty Level:
Mechanical expertise or professional installation required.
Installation Guides
No guide available for this part yet.
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