NGK Step Colder Spark Plugs Pre-Gapped FBM Spec Ford Focus RS

The factory spark plugs in the 2016 - 2018 Ford Focus RS have been found to vary widely in gap opening from plug to plug which can lead to spark blowout, misfires and poor fuel economy, especially when running higher than stock horsepower levels.

For safety sake we recommend upgrading to a one-step colder Iridium plug from NGK. Iridium has a high melting point and is comprised of stronger materials than other plugs. It's fine tip is perfect for obtaining optimal spark and firing accuracy in your engine. Benefits of these plugs can include high horsepower tolerance for your engine, increased anti-fouling properties, potential for greater fuel efficiency, and longevity.

These NGK plugs are cheap insurance to make sure your RS stays running at peak performance.

A certified tech will use a professional gapping tool to gap the spark plugs to our specs before shipping to make a hassle free install when you receive them!