NGK IX Iridium Spark Plug Box of 4 (TR6IX)

When you're looking to get the most out of your engine, especially if it's been modified or you're aiming for better overall performance, upgrading your spark plugs is a smart move. These NGK Iridium IX spark plugs are built with a fine iridium center electrode, which is significantly more durable than platinum. This means they can handle the higher temperatures and demands of performance-oriented engines, providing a consistent and strong spark for better acceleration and fuel efficiency.

The design of these plugs helps with starting and idling, and the tapered ground electrode can improve throttle response. Plus, the trivalent metal plating on the plug body helps prevent corrosion and seizing, making them easier to remove down the road. They're a solid choice for many vehicles, including popular models like the Ford Mustang, Chevrolet Camaro, and Cadillac CTS, offering a noticeable improvement over standard nickel alloy plugs.