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NGK Laser Iridium Spark Plug Box of 4 (SIFR6A11)

Upgrade your vehicle's performance with the NGK Laser Iridium Spark Plug Box of 4 (SIFR6A11). 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
  • Best for vehicles with OE PSPE iridium alloy plugs
  • Engineered for high ignitability and performance
Make Model Year Type
Subaru Legacy 2010 2.5i
Subaru Legacy 2010 2.5i Limited
Subaru Legacy 2010 2.5i Premium
Subaru Legacy 2011 2.5i
Subaru Legacy 2011 2.5i Limited
Subaru Legacy 2011 2.5i Premium
Subaru Legacy 2012 2.5i
Subaru Legacy 2012 2.5i Limited
Subaru Legacy 2012 2.5i Premium
Subaru Outback 2010 2.5i
Subaru Outback 2010 2.5i Limited
Subaru Outback 2010 2.5i Premium
Subaru Outback 2011 2.5i
Subaru Outback 2011 2.5i Limited
Subaru Outback 2011 2.5i Premium
Subaru Outback 2012 2.5i
Subaru Outback 2012 2.5i Limited
Subaru Outback 2012 2.5i Premium
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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