Electronic ignition kit "Lumenition" for Citroën SM, Maserati engine and SEV Marchal igniter. \ Contains all the elements necessary for assembly (screws, wiring and connectors). \ A new high-tech system, specially designed for the Citroën SM. \ Allows for better start-up, lower fuel consumption and lower emissions - Supplied with instructions in French and English as well as installation diagrams. \ The sensors are installed in place of the cassettes in the body of the igniter WITHOUT ANY MODIFICATION. The power modules must be installed in the most suitable location in the engine.