Holley
HP EFI / Dominator EFI GM Drive By Wire Harness 558-406
Application:UNIVERSAL NON APPLICATION SPECIFIC
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Create A New AccountThe MSD Ignition Wire 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 youve fit your engine with a supercharger or turbo.
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