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
2000	Aston Martin	DB7	Vantage
2000	Aston Martin	DB7	Vantage Volante
2009-2015	Cadillac	CTS	V
2014-2015	Chevrolet	Camaro	Z/28
2012-2015	Chevrolet	Camaro	ZL1
2013	Chevrolet	Corvette	427
2008	Chevrolet	Corvette	427 Limited Edition Z06
2006-2013	Chevrolet	Corvette	Z06
2011	Chevrolet	Corvette	Z06 Carbon
2009-2013	Chevrolet	Corvette	ZR1
1996-2008,2010-2011	Ford	Crown Victoria	Base
2006-2009	Ford	Crown Victoria	Fleet
2002-2009	Ford	Crown Victoria	LWB
1997-2011	Ford	Crown Victoria	LX
2004	Ford	Crown Victoria	LX Sport
1996-2005,2008-2011	Ford	Crown Victoria	Police Interceptor
1996-2005	Ford	Crown Victoria	S
2005	Ford	Crown Victoria	Special Edition
2002-2003	Ford	F-150	Harley-Davidson Edition
1999-2003	Ford	F-150	Lightning
2004	Ford	F-150 Heritage	SVT Lightning
2005-2006	Ford	GT	Base
2007-2014	Ford	Mustang	Shelby GT500
2008-2009	Ford	Mustang	Shelby GT500KR
2001-2004	Ford	Ranger	Edge
2004	Ford	Ranger	Tremor
1999-2004	Ford	Ranger	XL
1999-2004	Ford	Ranger	XLT
1999-2004	Ford	Taurus	LX
1999-2006	Ford	Taurus	SE
2000,2003	Ford	Taurus	SE Comfort
2004-2006	Ford	Taurus	SEL
2000-2004	Ford	Taurus	SES
2000	Ford	Taurus	SVG
2006-2007	Lincoln	Town Car	Designer Series
2006-2010	Lincoln	Town Car	Executive
2006-2011	Lincoln	Town Car	Executive L
2006	Lincoln	Town Car	Protection Series
2006-2007	Lincoln	Town Car	Signature
2006-2011	Lincoln	Town Car	Signature L
2006-2011	Lincoln	Town Car	Signature Limited
2001	Mazda	B3000	DS
1999-2001	Mazda	B3000	SE
2000	Mazda	B3000	SX
1999-2000	Mazda	B3000	Troy Lee
2006-2008	Mercury	Grand Marquis	GS
2006-2011	Mercury	Grand Marquis	LS
2003-2005	Mercury	Sable	GS
2001	Mercury	Sable	LS
1989	Pontiac	Firebird	Trans Am
1989	Pontiac	Firebird	Trans Am GTA SE
1990	Pontiac	Grand Prix	Mclaren
1989	Pontiac	Grand Prix	SE
1990	Pontiac	Grand Prix	STE
1968-1971	Rover	2000	Base
1968-1971	Rover	2000	TC