BMW 328I Rim Size? Please help.?

You should be able to go up to 18's but maybe not, BMW doesn't offer wheels that large on all of their cars so you might only be able to go as large as 17's. Now this is so you don't mess with things such as handling and your car's gauges such as the speedometer and mileage.

Bmw 328i Rims

What number of miles on this 328i vehicle? Is there whatever else that would be worn out in the entrance suspension? If nothing else is mistaken, examine the toe-in, caster and camber on a 4 wheel alignment fixture. Generally some thing can also be bent or misaligned. I would also propose a stiffer heavy responsibility shock absorber, but no longer too stiff. If in case you have over 100K miles, possibly comfortably new BMW shock absorbers willl maintain your auto from vibrating.