2009 Subaru WRX Spark Plugs

Subaru WRX / WRX STI 2.5L 2009, Iridium TT™ Spark Plug by Denso®. Ultimate Endurance and Power. 0.4 mm Iridium and 0.7 mm Platinum Twin-Tip Technology. Make your vehicle faster and more powerful with premium-quality performance fuel...

Subaru WRX / WRX STI 2.5L 2009, Iridium Power™ Spark Plug by Denso®. Iridium Ultimate Endurance and Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Iridium and 0.7 mm Platinum Twin-Tip Technology) & Tapered...