Overview 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 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.
Features:
Most accurate way to trigger your electronic fuel injection (EFI), can be installed as 12-1 or 12x
Powerful magnets embedded in a 3/8-inch thick billet 6061-T6 aluminum trigger wheel
3-wire Hall-Effect Sensor that is not easily susceptible to EMI/RFI Interference
Engine specific kits include a direct bolt-on billet aluminum pick up bracket
Rigid mounting that will not flex and cause timing fluctuation
Easy to install much like traditional MSD Crank Trigger Kits
Included installation instructions cover mechanical setup and provide step-by-step Holley EFI Software Setup
