The product is a set of NOS (new old stock) Champion N-6Y spark plugs, suitable for high-performance vehicles like Ferrari, Alfa Romeo, Audi, and Porsche. These spark plugs are known for their quality and reliability, making them a popular choice for car enthusiasts and mechanics looking to upgrade or replace worn-out spark plugs. With their specific manufacturer part number (n-6y) and interchange part number (sp-115), these Champion spark plugs are designed to provide optimal ignition performance and improve overall engine efficiency.