1. Constructed to meet or exceed your part for and 2. Help provide higher voltage that allows for a larger spark plug space 3. Increased vehicle engine torque and electrical current 4. Offer more efficient ignition utilization 5. Improve ignition performance with stable characteristics and high reliability Fitment For , Fit for KZ1000 KZ1100 KZ1300 KZ500 KZ550 KZ650 KZ750 Z400, and etc. Replace Part Number For : 30500-422-003, 30500-422-013, 30505-MB9-003, 30506-MA6-003, 30510-MA6-003, 30510-MA6-013, 30510-MR7-003; For : 21121-1010, 21121-1011, 21121-1017, 21121-1018, 21121-1019, 21121-1021, 21121-1022, 21121-1027, 21121-1028, 21121-1033, 21121-1035, 21121-1036, 21121-1038, 21121-1039, 21121-1058, 21121-1062, 21121-1063, 21121-1074, 21121-1075, 21121-1076, 21121-1106, 21121-1107, 21121-1108, 21121-1109, 21121-1110, 21121-1111, 21121-1132, 21121-1133, 21121-1135, 21121-1136, 21121-1137, 21121-1138, 21121-1144, 21121-1145, 21121-1149, 21121-1150, 21121-1168, 21121-1169, 21121-1177,