Installation Time
(approx) 30 Minutes
Difficulty Level:
Simple installation for anyone.
Installation Guides
No guide available for this part yet.
FREE 1 to 3-Day Delivery on Orders $149+ Details
Holley EFI Smart Coil for Holley EFI or Terminator X; Set of 8 (03-24 5.7L RAM 1500)Find parts that fit my vehicle
Item R174645
Sale
On Sale
-24% $548.99 set of 8 Was $719.95
Military, Medical & First Responders
$27.45 Available in AT Cash Rewards.
Confirm Eligibility
Confirm Eligibility
CONFIRM THIS FITS YOUR VEHICLE!
Saved - View your saved items
We're sorry. We couldn't save this product at this time.
or use
Shop Owners Save More!
Sign up for our dealer program
Product Information
Features, Description, Q&A, Specs & Installation
Features
- Ignition Upgrade For Late Model HEMI Or Coyote Engine
- Produces More Spark Energy While Consuming Less Power
- Delivers Hotter Spark For Maximum Fuel Burn In Each Cylinder
- Direct Bolt-On To Factory Valve Covers
- Same Wiring Pinout As Other IGN-1A Coils For Easy Plugin Upgrades
- Not Compatible With Factory Wiring
- Low Current Draw Reduces Electrical And Charging System Demand
- Built-In Ignitor Compatible With Holley EFI And Many Aftermarket ECUs
- Maximum Operating Voltage Of 18 Volts For 12 Volt And 16 Volt Systems
- Includes Mounting Hardware But No Mounting Bracket
- Fits 03-24 5.7L RAM 1500
Description
Ignition Performance Boost. The Holley EFI Smart Coil for Holley EFI or Terminator X; Set of 8 provides a significant ignition system upgrade for late model HEMI or Coyote engines. This coil delivers increased spark energy that improves combustion efficiency, resulting in better engine performance and reduced electrical load. It’s designed to produce a hotter spark while drawing less power, suitable for high-performance and racing applications.
Construction and Appearance. These smart coils feature a robust design with a black finish for a clean, professional look. Constructed to directly bolt onto factory valve covers, the coils include mounting hardware for installation but do not come with a mounting bracket. The integrated ignitor within each coil ensures compatibility with Holley EFI systems and many aftermarket ECUs.
Installation. The installation process is simplified by the coil’s direct bolt-on capability, requiring no modifications such as drilling. These coils will not work with factory wiring, so appropriate harnesses are needed for plug-and-play functionality.
Application. Designed to fit 03-24 5.7L RAM 1500, these coils provide a direct upgrade path without compatibility issues for this specific vehicle and engine combination.
Holley EFI 556-163
CA Residents: 
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Installation & What's in the Box
Installation Info
What's in the Box
- (8) Smart Coils
Questions & Answers
No questions about this product yet.
Ask the First Question
Will It Fit My Ram 1500
- 5.7L V8 - 03, 04, 05, 06, 07, 08, 09, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
