MSD Ignition control are easy to install, but we also offer several direct plug-in harnesses for late model vehicles! The harnesses plug directly into your factory coil and harness then four color coded wires plug into the corresponding wires of the MSD. Product Features:Easily install two DIS-4 Ignitions on late model Ford EnginesEasy Connections w/No Splicing Or Cutting Into Factory WiringWiring the system will take only an hour
