981 GT4 manifold - cat element (200 Zeller) made of stainless steel with a large cross section (63.5 mm) for performance-enhanced Porsche 981 GT4 Cayman types.
718 - 982 flap system flap exhaust with 63 mm diameter. Better gas flow, better performance, better sound. For Porsche Cayman 2.0 and 2.5 liter engines.