NGK Iridium IX Spark Plug Box of 4 (BR8ECSIX)

You get a box of four NGK Iridium IX spark plugs, part number 5886, with the BR8ECSIX designation. These plugs are built with a fine iridium center electrode, which is known for its extreme hardness and high melting point, making it well-suited for today's engines. The tapered cut ground electrode is designed to help with starting, idling, and throttle response. NGK also applies a trivalent metal plating to the threads, which helps prevent corrosion and makes them easier to remove later.

The iridium fine wire center electrode is a key feature here, offering durability that's significantly longer than platinum. This construction helps ensure a consistent spark, which translates to better acceleration and improved fuel efficiency. These are a solid option for upgrading from standard nickel alloy plugs, especially if you're looking for better performance in modified or high-performance applications. They fit a range of Ski-Doo snowmobiles, like the Expedition and GSX models.