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
2004-2007	Aprilia	Mojito Custom 50	Base
2016-2018	Cobra	CX50 FWE	Base
2017-2018	Cobra	CX50 P3	Base
2011-2018	Cobra	CX50-JR	Base
2010-2018	Cobra	CX50-SR	Base
1968	Ferrari	275 GT	Base
1964-1968	Ferrari	275 GTB	Base
1968-1969	Ferrari	Dino 206 GT	Base
1969-1973	Ferrari	Dino 246 GT	Base
1972-1973	Ferrari	Dino 246 GTS	Base
1988-1989	Kawasaki	KD80	Base
1989-1990	Maserati	430i	Base
1983-1987	Maserati	Biturbo	Base
2002-2004	Polaris	Freedom	Base
1996-1997	Polaris	Hurricane	Base
2000-2001	Polaris	Pro 1200	Base
1997	Polaris	SL 1050	Base
1997	Polaris	SL 700	Base
1996-1997	Polaris	SL 780	Base
1996-1997	Polaris	SL 900	Base
1999-2001	Polaris	SLH	Base
1996-1997	Polaris	SLT 780	Base
1999	Polaris	SLTH	Base
1996-1999	Polaris	SLTX	Base
1999	Polaris	SLX	Base
1996	Polaris	SLX 780	Base
2000-2004	Polaris	Virage	Base
1974-1975	Porsche	911	Carrera
1970-1971	Porsche	911	S
1976-1977,1986-1989	Porsche	911	Turbo Carrera
1978-1979	Porsche	930	Turbo
1981-1983	Yamaha	XJ650L Turbo Seca	Base
1985	Yamaha	XJ700 Maxim	Base