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Cobb Spark Plug Set One Step Colder 2006-2014 WRX / 2004-2021 STI / 2005-2009 LGT / 2004-2008 FXT

SKU D44700
Original price $65.00 - Original price $65.00
Original price
$65.00 - $65.00
Current price $65.00

This is the factory spark plug as installed in the 2018 Subaru WRX STI Type RA and 2019 Subaru WRX STI. The main differences are a heat range that is one-step cooler as well as a slightly tighter gap than previous factory spark plugs. These serve as a factory replacement for the 2018 STI Type RA and 2019 STI and a great upgrade for modified 2.5L Turbocharged Subarus.

A good quality spark plug goes a long way in ensuring your car's engine is running smoothly. For years, tuners have been using an alternate solution on cars that needed a tighter gap and cooler heat range. Now available as an off-the-shelf plug, this takes the guess work out of replacing or upgrading your Subaru's spark plugs.


  • Subaru 2.5L Spark Plugs WRX, STI, Legacy GT, Forester XT
  • Laser Welded Iridium Tipped Center Electrode
  • Trivalent Metal Plating
  • .024 (.6mm) Gap
  • Heat Range : 7
  • Sold as Set of 4

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