MSD DIS-4 to Ford 4.6L Modular Harness

The harness provides a splice-free installation with connectors that plug directly into the factory unit. They even have corresponding wire colors! When used in conjunction with two DIS-4 Ignitions and four Dual Ignition Adapters, PN 89121, your coil-on-plug Ford will receive all the spark it needs plus a two-step rev limit and step retard. And the best part, wiring will only take about an hour!

Features & Benefits
Easy connections with no splicing or cutting into factory wiring

Fits: Easy install for your DIS-4 to Ford 4.6 Modular engine