Originally Posted by PGT
Tire Rack shows the 18x8 fitment for the F30 as ET30. So, if the 17's are 17x8ET29, it should be no issue. Only other things to check are hub bore and of course the M Performance brakes need an 18" wheel, not 17"
OEM 18s are ET34, a bit concerned that the 17x8 Rials are ET29 which I am guessing means they sit more tucked in?