Denso Iridium Power Spark Plug IY27.
Denso Iridium Power Spark Plugs utilise a 0.4mm Iridium alloy centre electrode and a U-grooved ground electrode to improve ignition efficiency. This means cleaner combustion, less load on the ignition system.
Crisper throttle response and can last 2 - 3 times that of a standard spark plug.
Made in Japan.