235-35-19 is too conservative a tire for the 370z. If you can, you want to go with at least a 255-35-19 front and at least a 285-35-19 rear
Most wheel sizes are 19x9.5 +22 (or +12 depending on brakes) and 19x10.5 (+12) you can go more aggressive than that but it all depends on the wheels and whether you have Sport brakes
|