4x NGK Racing Spark Plug Stock 6702 Nickel Core Tip Standard 0.020in R5674-10

NGK Racing Spark Plug Stock 5657 Nickel Core Tip Standard 0.020in R5674-8

4x NGK Racing Spark Plug Stock 5034 Nickel Core Tip Standard 0.032in R5674-7

8x NGK Racing Spark Plug Stock 5657 Nickel Core Tip Standard 0.020in R5674-8

8x NGK Racing Spark Plug Stock 7317 Nickel Core Tip Standard 0.020in R5724-8

4x NGK Racing Spark Plug Stock 7891 Nickel Core Tip Standard 0.020in R5724-9

4x NGK Racing Spark Plug Stock 5820 Nickel Core Tip Standard 0.020in R5671A-10