6x Genuine NGK Iridium Spark Plugs 97506 SILZKBR8D8S for BMW 335I 2011-16 3.0T
Compared to standard spark plugs, NGK Laser Iridium® provides a superior fuel burn with a longer service life. LASER IRIDIUM. Laser welded Iridium centre electrode tip. Material: Iridium. Electrode Material: Iridium.