Champion spark plug copper plus™ rn57ycc

Champion Spark Plugs<li> Champion Power sport series plugs include all the features of their conventional plugs, but are built with extreme engine conditions and durability in mind</li><li> Copper Plus motorcycle spark plugs have a copper core center electrode that allows for accurate control of heat range, optimizing performance, and longevity for the spark plug</li><li> Fine wire electrodes increase ignitability by reducing spark quench</li><li> Increased bore clearances between shell and core nose reduces fouling caused by carbon deposits</li><li> Patented SAC-9 semi-conductor resistor for maximum EMI and RFI suppression</li>