The Koni 1145 Sport Kit 02-08 Audi A4 4cyl Quattro Avant is a complete suspension kit designed to improve the performance and handling of your Audi A4. This kit includes Koni Sport shocks and struts, adjustable front and rear anti-roll bars, and Eibach Pro-Kit lowering springs. These components are designed to work together to provide improved cornering, better road feel, and increased stability. The kit also includes all necessary mounting hardware and detailed instructions for a easy installation. With this kit, you can improve the performance of your Audi A4 and enjoy a more enjoyable driving experience.