Focus ST 225 (RS UPGRADE) NGK Laser Iridium Spark Plugs x5 For Ford RS 2.5 MK2
(UPGRADE PLUGS FOR FORD FOCUS ST MK2 ST225). Laser Iridium plugs are tested to the highest standards to ensure quality and durability. Spark Plug: Iridium Middle Electrode. Focus Petrol Hatch 2.5 RS 500 2521cc 257KW 350HP JZDA.