4PACK NGK 4344 LTR5IX-11 Iridium IX Plugs Boost MPG & Throttle

Upgrade your engine’s performance with the NGK LTR5IX-11 4344 Iridium IX Spark Plugs—engineered for drivers who demand reliability, efficiency, and snap. Replace your worn plugs every 30–60k miles and feel the difference in every pedal push.