Will Michelin Pilot Sport 4S (255-40-R19) tires have fitment or rubbing issues when mounted on a stock 2012 G37xS coupe wheels (19 in wheels)?

Also, if I recall correctly, the 19 inch sports wheels have a 8.5 inch width right?

The car is lowered on Fortune Auto 500 by 1.5 inch from stock height

 

The sport 19s on an X are all 8.5 and based on my reading you shouldn't have a problem with that size. I'm sure Brad will chime in to confirm.

 

Just go to Tire Rack and check the recommended wheel sizes for that tire. Easy peasy.

 

Yes but that's as big as you want to go