This three channel igniter is suitable for electronic ignition applications.  Required when using coils that don't have inbuilt igniters. Common uses include: wasted spark on 6 cylinder engines, coil-per-plug setups on 3 cylinder engines or using multiple igniters for 6 and 8 cylinder set-ups.  Compatible with all Link Wire-in ECU’s.  Includes heatsinking compound, 7 pin plug, pins and boot. Note - Does not include heatsink