Upgrade your vehicle's performance with the NGK Iridium IX Spark Plug, designed to enhance fuel efficiency and reduce emissions. The model 7177 is a testament to NGK's commitment to quality, ensuring a premium spark plug that fits a variety of engines. This pack includes four spark plugs, each built with meticulous craftsmanship that NGK is known for.The UR5IX plugs feature a sleek design and are engineered to provide reliable starts and smooth operation. Ideal for car enthusiasts and daily drivers alike, these spark plugs offer a significant upgrade over standard plugs, leading to a more enjoyable driving experience. Keep your engine running at its best with this essential maintenance item.