I think you should add akrapovic to the list. You will however probably want the full evolution system (high flow cats which require a tune or code deleters) to get the sound you want. I did so and have no regrets. Sounds aggressive and no drone IMO. You will have no performance gain without getting a full exhaust.
'13 SSII M3 Coupe - KW Clubsport 3-way, Akrapovic Evolution, ESS Tune, StopTech Trophy, IND Euro Front Bumper and Gloss Black Mirror Covers, TMS Studs/Lugs, BMW Performance Carbon Fiber Spoiler/Interior Trim/Center Console, BMW Edition Grills/Gills, BMWPedals Extended DCT Paddles, Advan TC3 18x9.5 & 18x10.5 - Hankook RS3 (Track), HRE R40 - 18x10 & 18x11 - Michelin PSS (Street)