In the fronts im running 235/35. My front tire to fender gap is 2 1/2" and the rear is 1 1/4 " Just dropped off the car the mechanic he said we lower these cars all the time no issue. Will post some pics when all done.... .

 

I had 295s on H&Rs on custom wheels, but when I bought another set of wheels and tried to replicate the offsets, I was just far enpugh off to rub at high speed interstate bumps. I went to 275s with no problem

Edit: Dont remember what my fronts were

 

He has a wide body C4S.

315's fit fine.

 

roll the fenders