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
1991	Alfa Romeo	164	Base
1991-1993	Alfa Romeo	164	L
1969-1971	Alfa Romeo	Berlina	Base
1967-1968	Alfa Romeo	Duetto 1600	Spider
1964-1967	Alfa Romeo	Giulia	Spider
1967-1968	Alfa Romeo	Giulia Sprint	Base
1969-1974	Alfa Romeo	GT Veloce	Base
1964	Alfa Romeo	GTC	Base
1967-1968	Alfa Romeo	GTV	Base
1987-1989	Alfa Romeo	Milano	Verde
1969-1971,1991-1994	Alfa Romeo	Spider	Base
1985-1990	Alfa Romeo	Spider	Graduate
1986-1990	Alfa Romeo	Spider	Quadrifoglio
1970-1994	Alfa Romeo	Spider	Veloce
1972-1973	Audi	100 Series	Base
1972-1973	Audi	100 Series	GL
1972-1977	Audi	100 Series	LS
1985	Audi	5000	CS Turbo
1984-1985	Audi	5000	S Turbo
1983-1985	Audi	Quattro	Base
1976-1984	BMW	R100RS	Base
1978-1985	BMW	R100RT	Base
1976-1980	BMW	R100S	Base
1978-1980	BMW	R100T	Base
1978-1985	BMW	R45	Base
1969-1973	BMW	R50/5	Base
1969-1974	BMW	R60/5	Base
1973-1976	BMW	R60/6	Base
1976-1979	BMW	R60/7	Base
1978-1987	BMW	R65	Base
1981-1985	BMW	R65LS	Base
1989	Chrysler	Conquest	TSi
2005-2006	Cobra	CM50	Base
2019	Cobra	CX50 FWE	Base
2019	Cobra	CX50 P3	Base
2019	Cobra	CX50-JR	Base
2019	Cobra	CX50-SR	Base
2007-2009	Cobra	CX65	Base
2007-2009	Cobra	ECX50	Base
2006-2009	Cobra	ECX70	Base
2005-2006	Cobra	KING	Base
2006	Cobra	P3	Base
1984-1986	Dodge	Colt	DL
1985-1988	Dodge	Colt	Premier
1975-1980	Ferrari	308 GTB	Base
1983-1984	Ferrari	308 GTB	Quattrovalvole
1981-1982	Ferrari	308 GTBi	Base
1977-1980	Ferrari	308 GTS	Base
1983-1984	Ferrari	308 GTS	Quattrovalvole
1981-1982	Ferrari	308 GTSi	Base
1968-1970	Ferrari	365 GT	Base
1976	Ferrari	365 GT4	2+2
1973-1974	Ferrari	365 GT4	Base
1975	Ferrari	365 GT4	BB
1975	Ferrari	365 GT4	BB Competizione
1974	Ferrari	365 GT4 BB	Base
1968-1974	Ferrari	365 GTB/4	Daytona
1968-1970	Ferrari	365 GTC	Base
1971-1972	Ferrari	365 GTC/4	Base
1968-1970	Ferrari	365 GTS	Base
1970-1974	Ferrari	365 GTS/4	Daytona
1975-1979	Ferrari	Dino 308 GT4	Base
1967-1971	Fiat	850	Base
1970-1971	Fiat	850	Racer
1967-1973	Fiat	850	Spider
1978-1979	Honda	Civic	CVCC
1989	Honda	TRX250R	Base
1982	Kawasaki	AR80	Base
1964-1966	Lamborghini	350GT	Base
1966-1967	Lamborghini	400GT	Base
1974	Lamborghini	Countach	Base
1975-1976	Lamborghini	Countach	LP400
1981-1982	Lamborghini	Countach	LP400S
1975-1978	Lamborghini	Espada	S3
1968-1969	Lamborghini	Islero	S
1975-1976	Lamborghini	Jarama	400GTS
1966-1967	Lamborghini	Miura	Base
1967-1974	Lotus	Elan	2
1969-1970	Lotus	Elan	2S
1972-1974	Lotus	Elan	2S 130
1962-1975	Lotus	Elan	Base
1968-1971	Lotus	Elan	S4
1971-1974	Lotus	Elan	Sprint
1989	Lotus	Esprit	Turbo
1989-1991	Lotus	Esprit	Turbo SE
1967-1975	Lotus	Europa	Base
1967-1970	Lotus	Europa	S1
1969-1972	Lotus	Europa	S2
1971-1974	Lotus	Europa	Special
1971-1974	Lotus	Europa	Twin
1969-1975	Lotus	Seven	Base
1989-1990	Maserati	228i	Base
1986-1987	Maserati	425	Base
1987	Maserati	Biturbo	Base
1968-1970	Maserati	Mistral	Base
1986-1987,1989-1991	Maserati	Spyder	Base
1954-1959	Mercedes-Benz	300SL	Base
1984-1988	Mitsubishi	Cordia	Turbo
2003-2005	Mitsubishi	Lancer	Evolution
2005	Mitsubishi	Lancer	Evolution MR
2005	Mitsubishi	Lancer	Evolution RS
1985-1988	Mitsubishi	Mirage	Turbo
1989	Mitsubishi	Starion	ESi-R
1984-1988	Mitsubishi	Tredia	Turbo
1971-1972	Peugeot	304	Base
1984-1986	Plymouth	Colt	DL
1985-1986	Plymouth	Colt	Premier
1994-1995	Polaris	SL 650	Base
1997	Polaris	SL 700 Deluxe	Base
1994-1995	Polaris	SL 750	Base
1995	Polaris	SLT 750	Base
1974	Porsche	911	Base
1969	Porsche	911	E
1969,1974-1977	Porsche	911	S
1980-1983	Porsche	911	SC
1969-1971	Porsche	911	T
1977-1982	Porsche	924	Base
1979-1982	Porsche	924	Turbo
1989	Porsche	944	S2
1978-1995	Suzuki	DS80	Base
1980-1981	Suzuki	TS185	Base
1980-1981	Suzuki	TS250	Base
1980-1982	Yamaha	SR250	Base
1981	Yamaha	SR250T	Base
1978-1979	Yamaha	SR500	Base
1980-1982	Yamaha	TT250	Base
1976-1981	Yamaha	TT500	Base
1980-1983	Yamaha	XJ650 Maxim	Base
1982	Yamaha	XJ650R Seca	Base
1982-1983	Yamaha	XJ750 Maxim	Base
1983	Yamaha	XJ750M Mid-Max	Base
1981-1983	Yamaha	XJ750R Seca	Base
1977-1981	Yamaha	XS400	Base
1977-1981	Yamaha	XS650	Base
1977-1979	Yamaha	XS750	Base
1980-1981	Yamaha	XS850	Base
1980-1983	Yamaha	XT250	Base
1976-1979	Yamaha	XT500	Base
1984-1985	Yamaha	XV1000 Virago	Base
1986-1999	Yamaha	XV1100 Virago	Base
1983-1984	Yamaha	XV500 Virago	Base
1987-1988,1990,1993-2000	Yamaha	XV535 Virago	Base
1984-1987	Yamaha	XV700 Virago	Base
1981-1983,1988-1997	Yamaha	XV750 Virago	Base
1982-1983	Yamaha	XV920 Virago	Base
1983	Yamaha	XV920M Mid-Virago	Base
1999-2009	Yamaha	XVS1100 V Star 1100 Custom	Base
2000-2009	Yamaha	XVS1100A V Star 1100 Classic	Base
2002-2009	Yamaha	XVS1100AT V Star 1100 Silverado	Base
1982-1983	Yamaha	YT175 Tri-Moto	Base