Iridium is a type of refined alloy which is highly suitable to be used as the materials of the central electrode in a spark plug. It extends the life of the spark plug nearly threefold, ensures a more stable idle speed of the engine, and delivers a super performance to the engine with improved fuel efficiency, and faster starting up.
1-Year Manufacturer Replacement : Fast, Direct;Backed by both the manufacturer and seller, you get double assurance—any issue is resolved quickly and efficiently