Milltek Sport | Manifold with Hi-Flow Cats (VW Golf MK5 R32)Milltek Sport Manifold with Hi Flow Cats (VW Golf MK5 R32) 2005 2009 The Milltek Sport manifold system, coupled with our Hi Flow Sports Cat, will provide significant power gains to your vehicle followed by a more distinctive sound. The larger diameter pipework of the manifold and the less restrictive catalyst will considerably increase the efficiency of the engine, allowing it to be used to its fuller potential. All our performance exhaust systems are