NGK Iridium IX Spark Plug Box of 4 (LFR6AIX)

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. NGK Iridium IX spark plugs are specifically designed for the performance enthusiast. Iridium IX provides outstanding acceleration, high fuel efficiency and durability. DODGE 2017-2015; LAND ROVER 2012-2008; M-BENZ 2011-2003; MITSUBISHI 2012-2004; SAAB 2006; SUBARU 2014-2004; VOLVO 2013-04

• RECOMMENDED USAGE: Modified or high performance applications, or as an upgrade to OE nickel alloy spark plugs
• Trivalent metal plating for superior anti-corrosion and anti-seizing properties
• Outstanding acceleration, high fuel efficiency and durability
• Fine iridium tip ensures durable and consistent spark

Designed for high-performance enthusiasts, the NGK Iridium IX Spark Plug (Part Number LFR6AIX) delivers exceptional acceleration, improved fuel efficiency, and long-lasting durability. Featuring a tapered cut ground electrode, these plugs enhance starting, idling, and throttle response, making them ideal for modified or high-performance engines. The fine wire iridium center electrode is six times harder than platinum, providing increased durability and consistent spark performance even under demanding conditions. The iridium alloy's high melting point ensures reliable operation across a range of modern engines, supporting optimal combustion and engine efficiency.
NGK Iridium IX plugs also feature trivalent metal plating, offering superior anti-corrosion and anti-seizing properties, which help maintain their performance over time. These plugs are recommended as upgrades to original equipment or for use in high-performance applications, ensuring enhanced ignition reliability and engine responsiveness.
Compatible with a variety of vehicles including specific models of Volvo, as well as some Land Rover, Mitsubishi, Saab, Subaru, and Mercedes-Benz models from 2003 to 2014, this set of four spark plugs provides an excellent balance of performance and longevity. Whether you're upgrading your vehicle for better performance or replacing worn-out spark plugs, NGK Iridium IX plugs are engineered to meet the demands of modern engines, ensuring smooth operation and improved driving experience.

Features:

• Designed for high-performance applications and engine upgrades

• Tapered cut ground electrode improves starting and throttle response

• Fine iridium tip provides durable, consistent sparks

• Trivalent metal plating offers superior anti-corrosion and anti-seize protection

• Compatible with multiple vehicle models including Volvo V50, C30, S40, and others from 2003 to 2014

Fitment:
Dodge Challenger SRT Hellcat 2015
Dodge Challenger SRT Hellcat 2016
Dodge Challenger SRT Hellcat 2017
Dodge Challenger SRT Hellcat 2018
Dodge Challenger SRT Hellcat 2019
Dodge Challenger SRT Hellcat 2020
Dodge Charger SRT Hellcat 2015
Dodge Charger SRT Hellcat 2016
Dodge Charger SRT Hellcat 2017
Dodge Charger SRT Hellcat 2018
Dodge Charger SRT Hellcat 2019
Dodge Charger SRT Hellcat 2020
Hyundai Genesis Coupe 2.0T 2013
Hyundai Genesis Coupe 2.0T 2014
Hyundai Genesis Coupe 2.0T Premium 2013
Hyundai Genesis Coupe 2.0T Premium 2014
Hyundai Genesis Coupe 2.0T R-Spec 2013
Hyundai Genesis Coupe 2.0T R-Spec 2014
Land Rover LR2 Base 2011
Land Rover LR2 Base 2012
Land Rover LR2 HSE 2008
Land Rover LR2 HSE 2009
Land Rover LR2 HSE 2010
Land Rover LR2 HSE 2011
Land Rover LR2 HSE 2012
Land Rover LR2 HSE Lux 2011
Land Rover LR2 HSE Lux 2012
Land Rover LR2 SE 2008
Mercedes-Benz C230 Kompressor 2003
Mercedes-Benz C230 Kompressor 2004
Mercedes-Benz C230 Kompressor 2005
Mercedes-Benz CL55 AMG Base 2003
Mercedes-Benz CL55 AMG Base 2004
Mercedes-Benz CL55 AMG Base 2005
Mercedes-Benz CL55 AMG Base 2006
Mercedes-Benz CLS55 AMG Base 2006
Mercedes-Benz E55 AMG Base 2003
Mercedes-Benz E55 AMG Base 2004
Mercedes-Benz E55 AMG Base 2005
Mercedes-Benz E55 AMG Base 2006
Mercedes-Benz G55 AMG Base 2005
Mercedes-Benz G55 AMG Base 2006
Mercedes-Benz G55 AMG Base 2007
Mercedes-Benz G55 AMG Base 2008
Mercedes-Benz G55 AMG Base 2009
Mercedes-Benz G55 AMG Base 2010
Mercedes-Benz G55 AMG Base 2011
Mercedes-Benz S55 AMG Base 2004
Mercedes-Benz S55 AMG Base 2005
Mercedes-Benz S55 AMG Base 2006
Mercedes-Benz S55 AMG Kompressor 2003
Mercedes-Benz SL55 AMG Base 2004
Mercedes-Benz SL55 AMG Base 2005
Mercedes-Benz SL55 AMG Base 2006
Mercedes-Benz SL55 AMG Base 2007
Mercedes-Benz SL55 AMG Base 2008
Mercedes-Benz SL55 AMG Kompressor 2003
Mercedes-Benz SLR McLaren Base 2005
Mercedes-Benz SLR McLaren Base 2006
Mercedes-Benz SLR McLaren Base 2007
Mercedes-Benz SLR McLaren Base 2008
Mercedes-Benz SLR McLaren Base 2009
Mitsubishi Eclipse GS 2006
Mitsubishi Eclipse GS 2007
Mitsubishi Eclipse GS 2008
Mitsubishi Eclipse GS 2009
Mitsubishi Eclipse GS 2010
Mitsubishi Eclipse GS 2011
Mitsubishi Eclipse GS 2012
Mitsubishi Eclipse GS Sport 2010
Mitsubishi Eclipse GS Sport 2011
Mitsubishi Eclipse GS Sport 2012
Mitsubishi Eclipse SE 2008
Mitsubishi Eclipse SE 2012
Mitsubishi Eclipse Spyder GS 2007
Mitsubishi Eclipse Spyder GS 2008
Mitsubishi Eclipse Spyder GS 2009
Mitsubishi Eclipse Spyder GS 2010
Mitsubishi Eclipse Spyder GS 2011
Mitsubishi Eclipse Spyder GS Sport 2012
Mitsubishi Eclipse Spyder SE 2012
Mitsubishi Galant DE 2004
Mitsubishi Galant DE 2005
Mitsubishi Galant DE 2006
Mitsubishi Galant DE 2007
Mitsubishi Galant DE 2008
Mitsubishi Galant ES 2004
Mitsubishi Galant ES 2005
Mitsubishi Galant ES 2006
Mitsubishi Galant ES 2007
Mitsubishi Galant ES 2008
Mitsubishi Galant ES 2009
Mitsubishi Galant ES 2010
Mitsubishi Galant ES 2011
Mitsubishi Galant ES 2012
Mitsubishi Galant FE 2011
Mitsubishi Galant FE 2012
Mitsubishi Galant SE 2005
Mitsubishi Galant SE 2006
Mitsubishi Galant SE 2007
Mitsubishi Galant SE 2010
Mitsubishi Galant SE 2011
Mitsubishi Galant SE 2012
Mitsubishi Galant Sport Edition 2009
Mitsubishi Lancer Ralliart 2004
Mitsubishi Lancer Ralliart 2005
Mitsubishi Lancer Ralliart 2006
Mitsubishi Lancer Sportback 2004
Mitsubishi Lancer Sportback Ralliart 2004
Mitsubishi Outlander Limited 2005
Mitsubishi Outlander Limited 2006
Mitsubishi Outlander LS 2004
Mitsubishi Outlander LS 2005
Mitsubishi Outlander LS 2006
Mitsubishi Outlander SE 2006
Mitsubishi Outlander XLS 2004
Mitsubishi Outlander XLS 2005
Saab 9-2X Aero 2006
Subaru B9 Tribeca Base 2006
Subaru B9 Tribeca Base 2007
Subaru B9 Tribeca Limited 2006
Subaru B9 Tribeca Limited 2007
Subaru Baja Turbo 2004
Subaru Baja Turbo 2005
Subaru Baja Turbo 2006
Subaru Forester Sports 2.5 XT 2008
Subaru Forester XT 2004
Subaru Forester XT 2005
Subaru Forester XT 2009
Subaru Forester XT Limited 2006
Subaru Forester XT Limited 2007
Subaru Forester XT Limited 2008
Subaru Forester XT Limited 2009
Subaru Forester XT Limited 2010
Subaru Forester XT Premium 2005
Subaru Forester XT Premium 2010
Subaru Forester XT Premium 2011
Subaru Forester XT Premium 2012
Subaru Forester XT Premium 2013
Subaru Forester XT Touring 2011
Subaru Forester XT Touring 2012
Subaru Forester XT Touring 2013
Subaru Impreza 2.5 GT 2009
Subaru Impreza 2.5 GT 2010
Subaru Impreza WRX 2006
Subaru Impreza WRX 2007
Subaru Impreza WRX 2008
Subaru Impreza WRX 2009
Subaru Impreza WRX 2010
Subaru Impreza WRX 2011
Subaru Impreza WRX 2012
Subaru Impreza WRX 2013
Subaru Impreza WRX 2014
Subaru Impreza WRX Limited 2006
Subaru Impreza WRX Limited 2007
Subaru Impreza WRX Limited 2010
Subaru Impreza WRX Limited 2011
Subaru Impreza WRX Limited 2012
Subaru Impreza WRX Limited 2013
Subaru Impreza WRX Limited 2014
Subaru Impreza WRX Premium 2009
Subaru Impreza WRX Premium 2010
Subaru Impreza WRX Premium 2011
Subaru Impreza WRX Premium 2012
Subaru Impreza WRX Premium 2013
Subaru Impreza WRX Premium 2014
Subaru Impreza WRX STI 2004
Subaru Impreza WRX STI 2005
Subaru Impreza WRX STI 2006
Subaru Impreza WRX STI 2007
Subaru Impreza WRX STI 2008
Subaru Impreza WRX STI 2009
Subaru Impreza WRX STI 2010
Subaru Impreza WRX STI 2011
Subaru Impreza WRX STI 2012
Subaru Impreza WRX STI 2013
Subaru Impreza WRX STI 2014
Subaru Impreza WRX STI Limited 2007
Subaru Impreza WRX STI Limited 2011
Subaru Impreza WRX STI Limited 2012
Subaru Impreza WRX STI Limited 2013
Subaru Impreza WRX STI Limited 2014
Subaru Impreza WRX STI Special Edition 2010
Subaru Impreza WRX TR 2006
Subaru Impreza WRX TR 2007
Subaru Legacy 2.5GT 2010
Subaru Legacy 2.5GT 2011
Subaru Legacy 2.5GT 2012
Subaru Legacy 3.0 R 2009
Subaru Legacy 3.0 R Limited 2008
Subaru Legacy 3.0 R Limited 2009
Subaru Legacy GT 2005
Subaru Legacy GT 2006
Subaru Legacy GT Limited 2005
Subaru Legacy GT Limited 2007
Subaru Legacy GT Limited 2008
Subaru Legacy GT Limited 2009
Subaru Legacy GT spec.B 2006
Subaru Legacy GT spec.B 2007
Subaru Legacy GT spec.B 2008
Subaru Legacy GT spec.B 2009
Subaru Outback 3.0 R Limited 2009
Subaru Outback R 2005
Subaru Outback R 2006
Subaru Outback R L.L. Bean Edition 2005
Subaru Outback R L.L. Bean Edition 2006
Subaru Outback R L.L. Bean Edition 2007
Subaru Outback R L.L. Bean Edition 2008
Subaru Outback R VDC Limited 2006
Subaru Outback VDC Limited 2005
Subaru Outback XT 2005
Subaru Outback XT 2006
Subaru Outback XT Limited 2005
Subaru Outback XT Limited 2006
Subaru Outback XT Limited 2007
Subaru Outback XT Limited 2008
Subaru Outback XT Limited 2009
Subaru Tribeca Base 2008
Subaru Tribeca Base 2009
Subaru Tribeca Limited 2008
Subaru Tribeca Limited 2009
Subaru WRX STI Base 2015
Subaru WRX STI Base 2016
Subaru WRX STI Base 2017
Subaru WRX STI Base 2018
Subaru WRX STI Launch Edition 2015
Subaru WRX STI Limited 2015
Subaru WRX STI Limited 2016
Subaru WRX STI Limited 2017
Subaru WRX STI Limited 2018
Subaru WRX STI Series.HyperBlue 2016
Volvo C30 T5 2008
Volvo C30 T5 2009
Volvo C30 T5 2010
Volvo C30 T5 2011
Volvo C30 T5 2012
Volvo C30 T5 2013
Volvo C30 T5 R-Design 2008
Volvo C30 T5 R-Design 2009
Volvo C30 T5 R-Design 2010
Volvo C30 T5 R-Design 2011
Volvo C30 T5 R-Design 2012
Volvo C30 T5 R-Design 2013
Volvo C70 T5 2006
Volvo C70 T5 2007
Volvo C70 T5 2008
Volvo C70 T5 2009
Volvo C70 T5 2010
Volvo C70 T5 2011
Volvo C70 T5 2012
Volvo C70 T5 2013
Volvo S40 T5 2006
Volvo S40 T5 2007
Volvo S40 T5 2008
Volvo S40 T5 2009
Volvo S40 T5 2011
Volvo S40 T5 R-Design 2010
Volvo S40 T5 R-Design 2011
Volvo S60 R 2004
Volvo S60 R 2005
Volvo S60 R 2006
Volvo S60 R 2007
Volvo S60 T5 2005
Volvo S60 T5 2006
Volvo S60 T5 2007
Volvo S60 T5 2008
Volvo S60 T5 2009
Volvo S60 T6 2011
Volvo S60 T6 2012
Volvo S80 3.2 2007
Volvo S80 3.2 2008
Volvo S80 3.2 2009
Volvo S80 3.2 2010
Volvo S80 3.2 2011
Volvo S80 T6 2008
Volvo S80 T6 2009
Volvo S80 T6 2010
Volvo S80 T6 2011
Volvo V50 T5 2005
Volvo V50 T5 2006
Volvo V50 T5 2007
Volvo V50 T5 2008
Volvo V50 T5 2009
Volvo V50 T5 2011
Volvo V50 T5 R-Design 2010
Volvo V50 T5 R-Design 2011
Volvo V70 3.2 2008
Volvo V70 3.2 2009
Volvo V70 3.2 2010
Volvo V70 R 2004
Volvo V70 R 2005
Volvo V70 R 2006
Volvo V70 R 2007
Volvo V70 T5 2005
Volvo XC60 3.2 2010
Volvo XC60 3.2 2011
Volvo XC60 3.2 R-Design 2011
Volvo XC60 T6 2010
Volvo XC60 T6 2011
Volvo XC60 T6 R-Design 2010
Volvo XC60 T6 R-Design 2011
Volvo XC70 3.2 2008
Volvo XC70 3.2 2009
Volvo XC70 3.2 2010
Volvo XC70 3.2 2011
Volvo XC70 T6 2009
Volvo XC70 T6 2010
Volvo XC70 T6 2011
Volvo XC90 3.2 2007
Volvo XC90 3.2 2008
Volvo XC90 3.2 2009
Volvo XC90 3.2 2010
Volvo XC90 3.2 2011