CTS Turbo Volkswagen Golf R Catch Can KitCTS Turbo is proud to offer the premier catch can solution for the Golf R, Audi S3 and Audi TT S with 2. 0 TFSI motor. The oil catch can is used prevent oil vapors entering the intake manifold and clogging up the intake valves on direct injection motors. Oil deposits on intake manifold and valves cause reduced performance, bad fuel mileage and could damage the fragile intake flaps and motor. Kit Includes: CTS Turbo billet aluminum valve cover breather