Quote:
Originally Posted by smrtypants44
Wheel offsets work the opposite. 18x7.5 et 45 is equivalent to 18X7.5 et 49 with a 4mm spacer.
So basically the front wheel will stick out 4mm compared to oem 135i wheels and the rear wheels will be 6mm closer to the car.
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18x7.5 ET45 with a 5mm spacer would push the wheel out to a final offset of ET40. Lower offsets push the wheel out. Higher offsets pull the wheel in. Spacers will always lower the offset/push the wheel out.
Regardless, this is easy fitment.
Also, the correct size would be 215/40, not 215/45, OP.