The Koni Special Active Shock Kit 02-08 Audi A4 Quattro 4cyl. Sedan is the perfect solution for those looking to upgrade their suspension on their Audi A4 Quattro 4cyl. Sedan. This kit includes four Koni Special Active shocks, which are designed to provide improved handling and a more comfortable ride. The shocks feature adjustable rebound settings, allowing you to tailor the suspension to your driving style and preferences. The kit also includes a set of progressive-rate springs, which help to improve the overall stability and performance of the vehicle. This kit is perfect for those looking to get the most out of their Audi A4 Quattro 4cyl. Sedan.