Rim offsets for 325i?

[stoits]

Hi guys

Can someone with knowledge let me know what are the rim offsets for my 325i with sport package?

The rims are 225/45 r17 in the front and 255 40/17 in the back and i believe the bolt pattern in 120. (please correct me if I'm wrong)

I'm looking to pick up a second winter rim set so I need some info.

Does anyone know what other fitments would work?

[stoits]

oh. I forgot. My 325i is a 2006 model

[Mystikal]

mid to high 30's.