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MSD EFI LS1 / LS6 Ignition Control Harness

MSD Ignition
MSD EFI LS1 / LS6 Ignition Control Harness

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Adapts MSD Ignition Control Box #121-6010 to work with your factory EFI system.

The Harness, which connects inline to the factory sensors, allows you to program an ignition timing curve, a step retard for nitrous use and select a two step rev control to help with consistent holeshots. You can even program a boost timing curve if you've fit your engine with a supercharger or turbo.

1 Product

LS1/LS6 EFI Adapter Harness
  • To connect 121-6010 to factory EFI
  • $93.95

    1 Product