NGK Iridium Spark Plug Box of 4 (DPR8EIX-9)

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 1983-1986 Honda CB450SC Nighthawk Base 1983 Honda CB550SC Nighthawk Base 1983-1985 Honda CB650SC Nighthawk Base 1984-1986 Honda CB700SC Nighthawk S Base 1991-2003 Honda CB750 Nighthawk Base 1990 Honda CBR600F Base 1983 Honda CM450A Hondamatic Base 1983 Honda CM450E Base 1986-1987 Honda CMX450C Rebel Base 2003-2009 Honda CRF230F Base 2008-2009 Honda CRF230L Base