NGK - Racing Series Spark Plug (R0373A-10) 4940

NGK Genuine Racing Spark Plugs R0373A-10 Stock No 4940 from Japan

NGK Genuine Racing Spark Plugs R0373A-10 Stock No 4940

NGK Racing Spark Plugs R2349-10 6839 Genuine Plug Japan

NGK Genuine Racing Spark Plugs R2349-10 Stock No 6839 Plug from Japan