The 992 platform is the performance car benchmark. Being amazing at every task is no small feat, but just like all turbo Porsches, it leaves much to be desired in the sound department. We solve the sound issue but our sport and race configuration. When the valves are opened, the exhaust gas passes unrestricted through our ex pipe and out so you get the most raw and aggressive sound characteristics. Be ready for aggressive overrun, and naturally aspirated type sound. The free-flow nature of the exhaust system makes your 992 sound like a 917 ripping by on the racetrack. This experience brings the magic out of the platform. When running in the valves closed mode, sound passes through our quad-chambered muffler in order to lower sound levels significantly. It's time to make your 992 sound like it always should have! The details Fully Mandrel bend for maximum flow Precision TIG welds for high strength Constructed of brushed T304 stainless steel or Ti 6Al-4V. Grade 5 titanium Rapid open / close valve function n14.9 LBS Lighter than the factory exhaust in stainless steel n41.9 LBS Lighter than the factory exhaust in titanium n100% REVERSABLE, always able to go back to stock at any time