A friend of mine is considering an E90 335i sedan. He wants the competition package (ZCP) with the lower suspension and 19" wheels. However, that package doesn't appear to be available for the 335i. So, looking at BMW Performance parts, there is a performance suspension package and 19" wheels available for the 335i.
According to BMW or at least this dealer, the performance suspension package "lowers the vehicle by 25 mm compared to the standard suspension and by 10mm when compared to the sport suspension. Spring rates are increased 48% compared to standard suspension and 34% compared to the sports suspension" The package includes the following: "2 Front struts and mounts,2 Rear shock absorbers, Front sway bar, 26.5mm in diameter (replacement of the rear sway bar is not required), Rubber sway bar mounts for front/rear, Small parts (mounting hardware, covers and dampers)."
Here's the link:
Similarly, he loves the 19" competition package wheels (style 359M?). Assuming he can get them, would they fit a standard 335i or one with the performance or sport suspension? Alternatively, BMW does offer a style 269M at a whopping $3575 price tag for his car: