02-07 WRX & STI NGK Iridium Spark Plugs
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.
- Subaru STI 2004-2007
- Subaru WRX 2002-2007
|02-05 WRX Stock Heat Iridium||6418||$43.52||$29.00||Usually ships in 2-3 weeks|
|02-05 WRX One Step Colder Iridium||2667||$45.80||$30.52||Usually ships in 2-3 weeks|
|02-05 WRX Two Steps Colder Iridium||2668||$45.80||$30.52||Usually ships in 2-3 weeks|
|04-07 STI/06-07 WRX One Step Colder Iridium||2309||$45.80||$30.52||Usually ships in 2-3 weeks|