NGK Iridium Premium Spark Plug Box of 4 (BR9EIX)

When you're looking to get the most out of your engine, especially if it's been modified or you're aiming for higher performance, upgrading your spark plugs is a smart move. These NGK Iridium IX spark plugs are built with a fine iridium tip, which is known for its extreme hardness and durability, lasting much longer than standard platinum plugs. This fine tip design helps ensure a consistent and strong spark, which translates to better starting, smoother idling, and improved throttle response.

The iridium alloy used in these plugs has a very high melting point, making it ideal for the higher temperatures found in today's engines, whether they're stock or performance-tuned. You can expect improved acceleration, better fuel efficiency, and overall durability from these plugs. They also feature a trivalent metal plating that helps prevent corrosion and seizing, making them easier to install and remove down the road. This set includes four plugs, which is a common quantity for many 4-cylinder engines, but they are also suitable for other applications like motorcycles and ATVs.