driving capabilities with a wider rear?

[DJexor]

islade Wrote:I have much wider rear and front allso, it is now spinning much easier, and it is harder to control it during drift, but grip is much better

yeah, i experienced it too when i changed my wheels from 15x7 offset +20 all around to 15x8 offset -2 rear and 15x7.5 offset -8.
Grip became much and much better, but i did front an rear at the same time.

Now i only want to widen up the rear, so not the front. I wonder if it will understeer a lot more or lets say gives you the feeling of understeer because of the increase of rear grip.