NGK IX Iridium Spark Plug (Set of 4)

If you're looking to get the most out of your engine, especially if it's been modified or you're aiming for better performance, upgrading your spark plugs is a smart move. These NGK IX Iridium spark plugs are built with a fine iridium tip, which helps ensure a consistent spark. This translates to better acceleration, improved fuel efficiency, and longer life compared to standard plugs. They're designed to handle the higher temperatures found in today's engines, making them a solid choice for many different makes and models.

The iridium alloy used in the center electrode is notably durable, offering six times the hardness of platinum. This means you can expect reliable performance over time. The tapered ground electrode also plays a role, contributing to easier starting, smoother idling, and a more responsive throttle. Plus, the trivalent metal plating on the plug body helps prevent corrosion and seizing, which makes them easier to remove down the road.

This set includes four spark plugs, which is the correct amount for most 4-cylinder engines. They're a popular upgrade for drivers who want a noticeable improvement in how their engine runs, whether it's for daily driving or more spirited use.