I'm guessing it's not for looks if the OP is sporting the wheels shown in his sig pic... you'll never see the brakes. Of course, they might not fit inside those wheels anyway.
I agree with some of the others when they say that a BBK would be a giant waste of money on a 325. Perhaps the OP can shed some light on why he's considering a BBK.
04 IR 330i ZHP | ESS TS2+ SC | MagnaFlow "headers" | KMS 3.64 LSD | AST 4100 550/650| APEX ARC-8 18x9 | H&R front sway bar | Vorshlag camber plates, RTAB limiters | TMS subframe & swaybar reinforcements | UUC SSK & DSSR | UUC TM & TME | BW motor mounts | Dinan strut & shock tower bars | vaio 4-bolt oil pump