Tint first! and you can easily find e60 M5 style front bumper, for the rear bumper, M tech or M5 depends on what kind of exhaust you chose, darker side markers, if possible, you can also get the newer Lci tail lights. Trunk Spoiler. Rims! (almost 1/4 of car body). carbon fiber hood, if you like. black grills. For the performance, but not much for engine, you can just get a after market intake (at least, sounds better). hope it helps!