The APR Turbo Muffler Pipe, Charge Pipes and Charge Hose System is a comprehensive upgrade for the 2.0T EA888 Gen 4 engine that addresses each component between the turbocharger and intercooler, and from intercooler to throttle body. The system increases air flow through smooth an uninterrupted airflow paths, and provides increased turbocharger sound, performance and reliability by upgraded each of the factory components. This kit is comprised of five kits otherwise sold on their own. Details of each are as follows: Fits Audi A3 22-24, A3 Quattro 22-24; VW GTI 22-24