Sport exhaust system type Cat-back by Capristo dedicated to Mercedes A 45 AMG W177.
The entire system is made of polished stainless steel marked T309. This is a type of heat-resistant steel, which significantly improves the exhaust's resistance to very high temperatures.
The system uses the original tips mounted in the rear bumper. No modifications are required for the installation of this exhaust; it is perfectly fitted to the car. There is an option to purchase a downpipe.
The end mufflers are equipped with vacuum-actuated valves, allowing for sound adjustment. This enables changing the exhaust sound characteristics from comfortable to more aggressive.
The valve control is done via a module included in the set and wireless remotes. An advantage of the Capristo module is the control of valve opening depending on engine load, which helps achieve maximum power. The system constantly monitors the pressure in the exhaust system and controls the valves according to the selected mode:
- CRUISE - the valves open later, with a stronger push of the gas pedal, quieter and calmer system characteristics,
- SPORT - the valves open faster, with every acceleration, louder and more aggressive system characteristics,
- OPEN - the valves are constantly open.
The advantage of this solution is the adjustment of valve operation to the driver's driving style. Thus, during aggressive driving, the valves open almost immediately, while during calm driving, the system remains quieter and less aggressive (e.g., on the highway).
