Magnecor's Exclusive Metallic Inductance Suppressed Conductor will outlast the life of any engine. Magnecor lead sets are not manufactured just to be a service item. To further improve reliability some Magnecor leads use different connectors to overcome problems associated with the original set you are replacing. This is particularly important if your vehicle is used for competition.
Stainless steel snap-lock terminals are used for spark plug ends and phosphor-bronze, brass or stainless steel terminals for distributor/coil ends. Leads are individually numbered.