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
2004,2006	Honda	CB600F 599	Base
1997-2000	Honda	CBR1100XX Super Blackbird	Base
1991-1994	Honda	CBR600F F2	Base
1995-1998	Honda	CBR600F F3	Base
1999-2000	Honda	CBR600F F4	Base
2014-2016,2018	Honda	CBR650F	Base
2015-2016	Honda	CBR650F ABS	Base
2020	Honda	CRF150R	Base
2020	Honda	CRF150R Expert	Base
2010	Honda	NHX110 Elite	Base
1988-1990	Honda	NX250	Base
1994	Honda	RVF750R RC45	Base