I know there is a fitment guide for the sedans but didnt see one for the coupes.

Would 19*8 +45 offset rims fit right on a g35 coupe, for the front and the back. I know the g has different offset in the back so would running the same rims on all 4 corners make it look weird....

thanks

There may be some clearance issues with that much offset in the fronts. I would look at rims between +20 and +30 for that width.

Offsets are too high.... It will look wrong I can tell you that.