NGK Iridium Spark Plugs WRX / STI

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NGK Stock Heat Iridium Spark Plug WRX (2002-2005)

SKU: 6418

Price: $10.18

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NGK One Step Colder Iridium Spark Plug WRX (2002-2005)

SKU: 2667

Price: $10.18

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NGK Two Steps Colder Iridium Spork Plug WRX (2002-2005)

SKU: 2668

Price: $10.18

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NGK Stock Heat Iridium Spark Plug STI (2004-2014) WRX (2008-2014) LGT (2005-2009)

SKU: 6619

Price: $10.18

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NGK One Step Colder Iridium Spark Plug STI (2004-2014) WRX (2006-2014) LGT (2005-2009)

SKU: 2309

Price: $10.18

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Product Description

More Durability and a Higher Melting Point compared to Platinum, better center electrode anti-oxidation and anti-erosion, improved ignition, superior anti-fouling, lower required voltage, new metal shell plating process for better anti-corrosion. One Step Colder plugs are reccomended for cars with heavy modifications. These NGK plugs will get your Turbo Subaru running smoother and free up some power through increased efficiency and increased heat resistance. These are available in stock heat or one step colder for cars running approximately 100 horsepower more than stock. Please make sure you choose the correct vehicle below.

Notes:
NGK plugs are sold individually.
For the best performance, one step colder plugs are only recommended for WRXs running more that 100hp over stock.
NGK Iridium plugs come pre-gapped from the factory and are not intended to be gapped with traditional plug gappers. Do so at your own risk.