The product is a genuine Audi Active Power Steering Rack & Pinion Control unit designed specifically for models 12-17 A6, A7, S6, and S7. The OE/OEM Part Number is 4G0909144L, and it is a direct manufacturer part number from Audi. This steering rack is not a universal fitment part and is not considered a vintage part. It is a crucial component for the smooth and efficient steering of these Audi models, providing reliable performance and control for the vehicle.