NGK (LFR7AIX) Iridium IX 1 Step Colder Spark Plugs Subaru WRX 2006-2014 / STI 2004-2021 (Qty 4)| 2309 Tool Caster: -1

Caster: -1

and extended clutch life when properly installed and properly broken in

durable material

Recommended for Motorsport Use

Each rotor is precision-machined and dynamically balanced to OEM specifications for smooth

NGK (LFR7AIX) Iridium IX 1 Step Colder Spark Plugs Subaru WRX 2006-2014 / STI 2004-2021 (Qty 4)| 2309 Tool Caster: -1Fitment Information: 2006 2014 Subaru WRX 2004 2021 Subaru STi 2005 2009 Subaru Legacy GT 2005 2009 Subaru Outback XT 2004 2008 Subaru Forester XT Features: Sold as a set of 4 spark plugs Trivalent metal plating provides superior anti corrosion and anti seizing properties Corrugated ribs prevent flashover Pure alumina silicate ceramic insulator, provides superior strength and better heat transfer Copper core aids in heat removal Triple seals prevent