I agree...i didnt do the resonator deal, but installed a Remus exhaust...driving around the town was great...driving long distance= headache!go to a dealership, trade your car for a honda, and then visit autozone for the cheap mufflers they sell. Come on man its a mercedes and believe me the exhaust bothers you after a while. My buddy has an exhaust on his c320 and every single stoplight is annoying and when driving on the highway in his car it sounds too loud and like shit to me. All he did was a resonator delete as well. Believe me you're not going to like it after about a month.