NGK Laser Iridium Spark Plug Box of 4 (SIFR6A11)

NGK is well-known for making reliable ignition components, and their Laser Iridium spark plugs are a prime example of that. If you're working on a 2010-2012 Subaru Legacy or Outback, these plugs are designed to be a direct OE replacement. They help ensure your engine starts reliably and runs smoothly, offering a good balance of performance and how long they last.

What sets these apart is the iridium center electrode, which is significantly harder than platinum, giving it a longer lifespan. You also get a platinum pad on the ground electrode, which helps maintain a consistent spark, especially in modern distributorless ignition systems. The pure alumina ceramic insulator helps manage heat effectively, and the copper core further aids in keeping things cool, preventing overheating. Plus, the trivalent metal plating on the threads helps prevent corrosion and makes them easier to remove down the road.

This set comes with four spark plugs, which is exactly what you'll need for your Subaru's four-cylinder engine. They're built to meet the same standards as the original equipment, so you can expect them to fit right and perform as expected.