does anyone know what the offset on the 350z is? Do the offsets differ if i were to get 19x8.5 in the front and 19x9.5 in the rear?

 

Offset depends on the wheel. The 350z does not come with a reccomended offset because offset varies from wheel to wheel.

a plus 22 on a Volk wheel probably would sit differently than a +22 on an SSR. If you look at the offsets in our wheel gallery of different wheels, you will notice that No two different wheel makes will have the same offset.

In order to find what wheel will fit your car best, you need to call the manufacturer of the wheel, or you need to take more measurements, since the formula for offset is not enough to determine whether a wheel will fit right on your car.