need help with wheel fitment and lowering
 

so im plan on buying new wheels and coilovers for my 2010 550i w/sport pkg 20" staggered 20x10 25mm offset in rear and 20x9 20mm for the front 275/30/20 in rear and 245/35/20 in front *concave wheels* at the same time im gonna lower it on coilover but don't want to rub or roll fender am I going to be ok with this set up? can I even go 20x11 for a more aggressive look? thanx so much going crazy trying to figure things out

anyone?

Hello again, if you are planning on going 20s and lowering on coils you need to stick to the correct tire specs. 245/30 and 295/25 rubberbands if your willing to do it? If you dont want rubbing issues.
Here is a pic of a buds car from Washington. on those specs. I believe ideally you should be at 20mm all around? GL