- High energy ignition coil kit
- Direct LS and IGN-1A fitment
- EFI compatible design
- Extended dwell capability
- Includes plug-in harnesses
- Low current draw
- Uncontrolled vehicle applications
Designed for serious performance builds, the MSD Smart Coil Big Wire Ignition Kit delivers increased spark energy while maintaining low current draw. Its extended dwell capability maximizes spark output for improved combustion efficiency.
The kit includes plug-and-play harnesses for Holley and GM LSx applications and bolts directly to LS valve covers with 72mm spacing. Compatible with Holley EFI and many aftermarket ECU systems.
Intended for Uncontrolled (Non-Emissions Controlled) Vehicles.