I want to put an exhaust on my black ML320 even though its a v6. I want to spend about $400 total. Im really confused on what to do Ive read that if I just get a new muffler and take off the resonator it will good. But can I do this and get dual exhaust? I dont want it to be really loud either just like the amg sound so does that mean smaller pipes? Please help and any recommendations. Ive been MJ350's sebring tips and that looks good!