What's the best sport exhaust for the new E-Class coupe 500?

[panic]

Hi,

I'll have my brand new E-class coupe 500 model year 2014 arriving in a few weeks, could you please advice me what would be the best cat back sport exhaust for this model? I'd prefer to keep the end tips of the system...

Is there a cold air intake for this model.

As you can understand I'm new of this marque....

Thanks a lot and have a sweet rest of the weekend.