They posted the tires mounted.
Notice the width of the 325 is the same as the 11.5 wheel. ( No Bulge )
__________________
2013 ZL1 M6
Roto Fab CAI, Kooks Long tube Headers with catless connection pipes, 90mm Ported throttle body to match ported supercharger snout. 2.55 upper pulley, Roto Fab intercooler tank, ID 850 injectors, 9.5 mm wires, Custom 93 octane tune. 600 whp. Hotchkis coils.
White Collar Grease Monkey
https://www.youtube.com/user/gjodexter