Like the 992 Turbo itself, our Valved Exhaust System provides the best of both worlds for performance and comfortable cruising. A tangible delta between valves open and closed provides the ideal driving character for any situation, with x-pipes blending the exhaust for a smooth, rich tone in either condition. But to maximize that sound and the sound delta, upgrading the factory catted components will amplify that sound and performance to an even greater level.