Mercedes C350 upgrades/ideas?

It doesn't matter what you put under the hood or in the body, the fact is that the most crucial component to performance, (the driver) will still be woefully inadequate for high performance driving, as you're apparently not just a moron, but a lazy one too. RENNTECH, Brabus, and kleeman all make performance parts for the car. I don't know what you punched into the web search, but If you can't figure that out, I shudder to think of how you will butcher this poor car.