Porsche|Panamera/S/4/4S/GTS (970.1)|2016 Gr.1 titanium / T304 stainless steel exhaust systems and tips for the full R8, RS, and S portfolio. All of our Porsche|Panamera/S/4/4S/GTS (970.1)|2016 components are 100% made in house at our factory and we are aiming to provide our customers the best sounding aftermarket exhaust system.