this late in the w211 game i am sure i am not the first to inquire about exhausts but i am finding some conflicting info along with too much information. i am basically looking for something civilized at low speeds, city driving and without drone at steady (cruise control) highway speeds however at the same time i would like something that sounds menacing and complimentary to the e63 engine when stepping on the gas and at "WOT"... any and all recommendations and suggestions welcome. thanks.