spence230

I have a 1998 c 230 and i recently upgraded to a K&N Apollo cold air intake, i want to do an exhaust system to go along with the intake so the air will flow out better. but i don't know how much it will cost. i want a better sound but i don't want to turn my car into a ricer and make it obnoxious. I'm not sure Where to start and how much power can i get from just a muffler or would it be better to upgrade the entire system. Maybe just a little at a time. Also what brand of exhaust would be best.