2009 C280

Hey, I’m trying to find a not to expensive exhaust system for my 2009 c280, or smaller mufflers. I’m just trying to make my car sound nicer but can’t seem to find any mufflers for it. Can I put an muffler or does it have to be a specific one for the car, like will it send error codes to the engine, if so what do I have to get to stop that?