Changing the staggered rim set up on a 2008 328i sport package

Good morning from a snowy colorado,

I would like to change the rims out; loose the RFT, have the same size rims on all four coners. I am looking for a 34 offset all the way around? Can I bump down to a 17inch rim?

Thanks

MJ.

verizon backup assistant blackberry verizon backup verizon backup assistant