NGK Racing Spark Plug - R2525-10

.cs95E872D0{text-align:left;margin:0pt 0pt 0pt 0pt;}.csC57700C4{color:#000;background-color:transparent;font-weight:bold;font-style:normal;}.csA7555675{color:#000;background-color:transparent;font-weight:normal;font-style:normal;}.cs4FC7BF42{text-align:left;margin:0pt 0pt 0pt 0pt;list-style-type:disc;color:#000;background-color:transparent;font-weight:normal;font-style:normal;} The Racing Spark Plug intended for competition should be able to resist to extreme conditions: Repeated acceleration and deceleration with powerIntensive engine operating on high rev. Extreme condition inside combustion chamber such as temperature variation, pressure, vibration and turbulences cannot be sustained by a standard spark plug.