The standard Mercedes C63 with its big and rumbling V8 has a very distinctive soundtrack which is simply awesome! But it might get on your nerve sometimes specially in traffic.
So Schatz Performance has come up with a new set of active exhausts system for the car which is electronically operated via a switch inside the cabin.
This exhausts has some valves and stuff in it that, when closed, make the car about 50 percent quieter than the standard. But when you open it, all hell breaks loose!
Schatz exhausts also add a mere 16 hp to the output of the engine. It is a bit pricey though, at 3699 Euro.
Further Readings: