Brand New

NGK Iridium Spark Plugs

Iridium plugs are more durable and a higher melting point compared to Platinum. Enjoy the benefits of reduced corrosion, improved ignition, superior anti-fouling, and a lower required voltage. These NGK plugs will get you running smoother and making more power through increased efficiency and increased heat resistance.

One Step Colder plugs are recommended for cars with moderate to heavy modifications.

Fitment:

Fits 2006-2014 Subaru Impreza WRX (will not fit 2002-2005 WRX)
Fits 2004-2014 Subaru Impreza STI
Fits 2005-2012 Subaru Legacy GT

Plugs Included: 4

Heat: One Step Colder

Spark Plug Type: Iridium IX

Stock Number: 2309

Part Number: LFR7AIX

Features:
-Fine Iridium tip ensures high durability and a consistently stable spark
-Iridium alloy has extremely high melting point, perfect for todayâs high-tech, high-performance engines
-Trivalent Metal Plating - superior anti-corrosion and anti-seizing properties
-Outstanding acceleration, high fuel efficiency and durability
-Ultimate design, technology and performance.

Note: NGK Iridium plugs are able to use larger gap setting with less voltage. Some customers choose to regap these plugs to correct misfiring or tune for optimal spark -- do so at your own risk -- slide-type plug gapper can damage the fragile Iridium tip.