backspacing for prostars
Are there any benefits( other than being physically wider and the ability to run a wider tire) to running a 15x10? I will be getting a 9'' inch pretty soon that will most likely gonna be shortened, buying two sets of wheels will not be a problem. What offset should I run? I want the wheel/tire combo to sit flush with the car. I don't mind grinding; although, the less involved, the better.
thank you guys for your time!

