The Koni 1145 Sport Kit 05-11 Audi A6 Quattro 6cyl Sedan excl. V8 / FWD / Wagon is an adjustable suspension kit designed to improve handling, comfort, and performance on the Audi A6 Quattro 6cyl Sedan (excluding V8, FWD, and Wagon models). This kit includes four Koni Sport adjustable dampers, four Koni Sport springs, and four Koni Sport bump stops. The dampers feature adjustable rebound for fine-tuning the ride and handling characteristics. The springs are designed to lower the car's center of gravity for improved handling and stability. The bump stops provide a progressive spring rate for improved ride comfort and performance. This kit is designed to provide a more responsive and comfortable ride, improved cornering and braking, and improved overall performance.