NGK Iridium IX Spark Plug Box of 4 (ER9EHIX)

NGK Iridium IX spark plugs are specifically designed for the performance enthusiast. Iridium IX provides outstanding acceleration, high fuel efficiency and durability. NGK Iridium IX plugs offer extreme ignitability and exceptional anti-fouling. Tapered cut ground electrode provides improved starting, idling and throttle response. The Iridium fine wire center electrode's durability is six times harder than platinum. Iridium alloy's extremely high melting point is perfect for today's engines. For even greater performance consider upgrading to an NGK Ruthenium HX plug.This Part Fits: Year Make Model Submodel 2016 Piaggio Fly 50 4V Base 2016 Piaggio Typhoon 50 Base 2010-2012 Vespa LX 50 4V Base 2009 Vespa S 50 Base 2010-2014 Vespa S 50 4V Base 2015-2017 Vespa Sprint 50 Base