Integrated Engineering | Recirculating Catch Can Kit (VW MK7 GTI/R, Audi S3 8V)REDUCE CARBON BUILD UP AND OIL MIST. To prevent crankcase oil fumes from condensing and filling your turbo piping, intercooler, and intake manifold, a catch can is a must for your new MK7 EA888 GEN 3 TSI engine. A catch can works well to gather all of the oil fumes that are omitted from the valve cover breather, removing the faulty factory oil separator in the process. This not only removes the oil mist that is found everywhere but will greatly help