This stunning system is made completely from high-grade titanium. It includes parts cast in the company’s in-house foundry, featuring an active X connection and an additional pair of exhaust valves behind the rear mufflers, designed to provide optimal control of the exhaust sound for the best aural enjoyment. The system has been perfectly tuned to deliver the very best sound experience in all modes – enormous effort was invested to give it a sporty, deep higher-frequency V8 sound with an unmistakable Akrapovič character, while keeping it smooth and eliminating any drone for maximum everyday comfort. By using the optional Akrapovič Sound Kit, the driver can choose between a loud racy sound or a quieter note for long-distance driving, regardless of the mode chosen for the vehicle. The look of the Evolution system can also be further enhanced by adding four round titanium or carbon-fibre tailpipes.An increase in performance and torque through a broad rpm range and a significant weight savings of 40% makes this a very serious performance upgrade. With optimized gas flow and reduced back pressure, it allows limitless tuning options.Because it is ECE type approved with no need to remap the ECU or add any other parts, it is just a simple plug-and-play installation. The exquisite Akrapovič Evolution Line (Titanium) exhaust system adds performance and style, along with an amazing soundtrack.With the use of the optional Akrapovič Sound Kit, the ECE type approval is no longer valid.For vehicles with the base (non sport) Porsche exhaust system, which is then replaced by the Akrapovič Evolution Line system, the Middle Valve Actuator Kit (P-HF1170) is a mandatory upgrade.Fittment notice: This system does not fit on vehicles equipped with Otto particulate filter (OPF). This product will not fit on Executive models.