Originally Posted by mstearnsy
There is such a thing because I also own a 2005 330Ci and when I did my front brakes I considered buying the BMW Performance cross drilled rotors instead of factory rotors. I decided not to strictly because I ran a 17" winter wheel setup. They are an aftermarket accessory through BMW parts depts as part of the BMW Performance tuning lineup.
I did a search, the 330ci BMW Performance rotors are the same size as stock, 325x25.