NGK LKAR7BIX-11S Iridium IX Spark Plug (93501 Iridium Ix), 4 Pack | Fits select 4-cylinder Acura, Honda, Lexus, Mazda, Pontiac, Scion, Subaru & Toyota models (2008–2025, varies by model)

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• Designed specifically for the performance enthusiast, Iridium IX offers extreme ignitability, improved throttle response and superior anti-fouling
• The 0.6 millimeter laser welded fine Iridium tip ensures high durability and a consistently stable spark and the tapered ground electrode minimizes electrical quenching effect
• Longer insulator nose prevents fouling, the corrugated ribs on insulator prevents flashover, and a triple gasket seal eliminates combustion gas leakage
• Iridium alloy has extremely high melting point, giving it high durability to heat and electrical wear, perfect for today's high performance engines
• Trivalent Metal Plating provides superior anti-corrosion and anti-seizing properties
• Cold-rolled threads prevent cross-threading and damage to cylinder heads
• Trivalent plating eliminates need for anti-seize
• High-grade alumina silicate ceramic
• DFE & PSPE tip designs