CONTENT BRABUS Valve Controlled Exhaust System Base Vehicle: 2014 Mercedes-Benz S550 OVERVIEW Mercedes Benz’s S550 is looking quite sporty with BRABUS’s new valve controlled exhaust system. The German tuner took the exhaust bypass valve and integrated into the exhaust system of the S550. As a result, the driver is able to allow exhaust gases to flow through its typical route and/or discharge it without going through the car’s muffler. This valve system is electronically controlled and the driver can control it from the steering wheel or the console. Not only does this exhaust system do a lot physically, it also makes the exhaust sound fantastic as well as increase the engine’s power.