Hey! so I'm planning on putting some new wheels on my g37 along with air ride . I was going to go 20x10.5 all around but I keep hearing for a better Fitment to put 20x10.5 in the rear and 20x9.5 in the front . reason being I want to camber in the back and small amount in the front but more tucked in .

 

Coupe or Sedan? Do you have the big Akebono brakes, or plan to add them?
What wheels do you plan to run?

 

right now I have stock brakes.
it's a 2009 G37 Sedan .
Wheels would be Vossen VFS/2

 

Here's the VFS2 in 19"~
8.5 +32
9.5 +28
10 +48
11 +45

In 20"~
9.5 +25
10 +45
10.5 +25, +45
If you flat roll the front fender edge (like the rears are already rolled from the factory) you'll gain more clearance. You could run the 9.5 +25 on 245/35/20 tires, you'll be flush but if you need to add some camber it sounds like you're ok w/ that.

In the back you could run the 10.5 +45 to give you plenty of room for more tire, you could run up to a 285/30/20, and even a 295/30 if you want more camber. Then run a spacer if you want it even more flush at the fender. If you run the 10.5 +25 back there it will poke, even w/ a stretched tire setup.

The wheels should clear big calipers if you decide to get them in the future, but always best to confirm w/ the vendor first.