The entire system is made of polished stainless steel marked T309. The system ends with four polished tips. No modifications are required for the installation of this exhaust; it is perfectly fitted to the car.
The system is equipped with vacuum-controlled valves that allow sound adjustment. The modification does not include changing the end mufflers, which remain stock.
In cars equipped with the PSE exhaust system, the valve control is done via a built-in button. For cars without the PSE system, an optional control module with wireless remotes must be purchased.