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NGK Laser Iridium Long Life Spark Plug Box of 4 (SILFR6A)

Upgrade your vehicle's performance with the NGK Laser Iridium Long Life Spark Plug Box of 4. Engineered with the latest technology, these spark plugs offer the best combination of performance and longevity.

With an iridium-tipped center electrode that's six times harder than platinum, these spark plugs provide durability and reliable starts. The high-grade pure alumina ceramic and 98% pure copper core prevent overheating, ensuring optimal performance.

  • Actual OE or equivalent replacement spark plug
  • Recommended for vehicles with OE SPE iridium alloy plugs
  • Engineered for high ignitability and performance
Make Model Year Type
Dodge Challenger 2015 SRT Hellcat
Dodge Challenger 2016 SRT Hellcat
Dodge Challenger 2017 SRT Hellcat
Dodge Challenger 2018 SRT Hellcat
Dodge Challenger 2019 SRT Hellcat
Dodge Challenger 2020 SRT Hellcat
Dodge Charger 2015 SRT Hellcat
Dodge Charger 2016 SRT Hellcat
Dodge Charger 2017 SRT Hellcat
Dodge Charger 2018 SRT Hellcat
Dodge Charger 2019 SRT Hellcat
Dodge Charger 2020 SRT Hellcat
Subaru Forester 2009 XT
Subaru Forester 2009 XT Limited
Subaru Forester 2010 XT Limited
Subaru Forester 2010 XT Premium
Subaru Forester 2011 XT Premium
Subaru Forester 2011 XT Touring
Subaru Forester 2012 XT Premium
Subaru Forester 2012 XT Touring
Subaru Forester 2013 XT Premium
Subaru Forester 2013 XT Touring
Subaru Impreza 2008 WRX
Subaru Impreza 2008 WRX STI
Subaru Impreza 2009 2.5 GT
Subaru Impreza 2009 WRX
Subaru Impreza 2009 WRX Premium
Subaru Impreza 2009 WRX STI
Subaru Impreza 2010 2.5 GT
Subaru Impreza 2010 WRX
Subaru Impreza 2010 WRX Limited
Subaru Impreza 2010 WRX Premium
Subaru Impreza 2010 WRX STI
Subaru Impreza 2010 WRX STI Special Edition
Subaru Impreza 2011 WRX
Subaru Impreza 2011 WRX Limited
Subaru Impreza 2011 WRX Premium
Subaru Impreza 2011 WRX STI
Subaru Impreza 2011 WRX STI Limited
Subaru Impreza 2012 WRX
Subaru Impreza 2012 WRX Limited
Subaru Impreza 2012 WRX Premium
Subaru Impreza 2012 WRX STI
Subaru Impreza 2012 WRX STI Limited
Subaru Impreza 2013 WRX
Subaru Impreza 2013 WRX Limited
Subaru Impreza 2013 WRX Premium
Subaru Impreza 2013 WRX STI
Subaru Impreza 2013 WRX STI Limited
Subaru Impreza 2014 WRX
Subaru Impreza 2014 WRX Limited
Subaru Impreza 2014 WRX Premium
Subaru Impreza 2014 WRX STI
Subaru Impreza 2014 WRX STI Limited
Subaru Legacy 2005 GT
Subaru Legacy 2005 GT Limited
Subaru Legacy 2006 GT
Subaru Legacy 2006 GT spec.B
Subaru Legacy 2007 GT Limited
Subaru Legacy 2007 GT spec.B
Subaru Legacy 2008 GT Limited
Subaru Legacy 2008 GT spec.B
Subaru Legacy 2009 GT Limited
Subaru Legacy 2009 GT spec.B
Subaru Outback 2005 XT
Subaru Outback 2005 XT Limited
Subaru Outback 2006 XT
Subaru Outback 2006 XT Limited
Subaru Outback 2007 XT Limited
Subaru Outback 2008 XT Limited
Subaru Outback 2009 XT Limited
Subaru Tribeca 2008 Base
Subaru Tribeca 2008 Limited
Subaru Tribeca 2009 Base
Subaru Tribeca 2009 Limited
Subaru WRX STI 2015 Base
Subaru WRX STI 2015 Launch Edition
Subaru WRX STI 2015 Limited
Subaru WRX STI 2016 Base
Subaru WRX STI 2016 Limited
Subaru WRX STI 2016 Series.HyperBlue
Subaru WRX STI 2017 Base
Subaru WRX STI 2017 Limited
Subaru WRX STI 2018 Base
Subaru WRX STI 2018 Limited
NGK manufactures spark plugs and spark plug wires, as well as glow plugs for diesel applications. Their range of spark plugs cover everything from OEM replacement to Ultimate Performance plugs, and are available as traditional copper, platinum, or iridium tips. NGK’s reputation as an OEM supplier for many car manufacturers makes them a top choice for spark plugs. Few brands can make that claim and have the quality to back it up.
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