The Bosch Spark Plug - FGR4NQE04 is a high-performance spark plug designed for use in a wide range of vehicles. It features a nickel-plated shell for improved corrosion resistance and a copper core electrode for efficient heat transfer. The spark plug also has a tapered cut ground electrode for enhanced fuel efficiency and a longer lifespan. It is compatible with a variety of ignition systems and is designed to provide reliable ignition and smooth engine performance. This spark plug is a top choice for drivers looking for improved engine performance and fuel efficiency.