Hi everybody.
I have a 2013 G37xS coupe (AWD with sport pkg). The stock on this car is 8 inch wheels with 225/45/19 at all corners.
I was wondering if I should get 245/40/19 summer tires. This size has more tire options, however I'm worried it might have a toll on performance/other problems.
Did anybody try this setup / has an opinion?
Thanks

 

245/45 on an 8" rim is the widest tire you should run, you shouldn't have any issues as it's still in the recommended rim width for that size tire (recommended rim range is 8-9.5" for most brands).