The APR Full Catch Can System - VW/Audi Gen 3 MQB is the latest in advanced engine protection technology. This system helps to reduce carbon buildup and keep your engine running smooth. It features an oil catch can with a large capacity for capturing oil vapor and debris, a high-flow diverter valve, and a unique silicone hose design that ensures a secure connection. This product is perfect for those looking to maintain a clean and efficient engine.