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:
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.

More From This Category

AC Delco, Big Block Linear Wire Looms Black Crinkle w/ Bowtie, Chevy Big Block 396 to 454 V8 Engines 1965 to 1996

AC Delco, Big Block Linear Wire Looms Black Crinkle w/ Bowtie, Chevy Big Block 396 to 454 V8 Engines 1965 to 1996

$200.66

ARP SB For Chevrolet 6.2L LT1 SS 12pt coil bolt Kit

ARP SB For Chevrolet 6.2L LT1 SS 12pt coil bolt Kit

$103.32

MSD Ignition Coil, 1994-2006 For Dodge/For Plymouth/For Chrysler/Eagle/For Mitsubishi/For Jeep 2.0L/2.4L/4.0L Engines, Red, Each

MSD Ignition Coil, 1994-2006 For Dodge/For Plymouth/For Chrysler/Eagle/For Mitsubishi/For Jeep 2.0L/2.4L/4.0L Engines, Red, Each

$241.31