The product is a set of OEM fuel injectors for a 2005 Audi A8 4.2 engine, manufactured in Germany by Audi. The manufacturer part number for the fuel injectors is 280156180. These fuel injectors are designed specifically for the Audi A8 4.2 engine and are essential for proper fuel delivery and performance. Made by the original equipment manufacturer, these fuel injectors are a reliable and high-quality replacement part for your vehicle.