NGK Iridium IX Spark Plugs LTR5IX-11

NGK Iridium IX Spark Plugs — Precision Ignition for Performance Corvettes

Upgrade your Corvette’s ignition with NGK’s Iridium IX line — built with an ultra-fine iridium center electrode that delivers sharper sparks, better efficiency, and lasting durability.

Key Features & Benefits

• Ultra-Fine Iridium Electrode
   Just thick enough to stay durable, just thin enough to reduce voltage requirements — delivering reliable, consistent sparks.

• Reduced Voltage Requirement
   Because iridium is extremely hard and heat resistant (≈6× harder than platinum), the plug demands less energy to fire. 

• Improved Ignitability & Flame Kernel Growth
   The V-Groove / fine electrode design allows the flame kernel to expand quickly and fully, improving combustion efficiency and throttle response.

• Anti-Fouling & Longevity
   Superior resilience to carbon & deposit buildup — ideal for both street driving and performance builds.

• Wide Application Range
   Available in many part numbers and configurations to match both universal and vehicle-specific engines.