[Coastali8]

Update 6-21-19
The following is what I posted a while back on another thread.
Still no issues. Running 30 psi front and rear.
However... if your driving over 118 mph on W rated tires (fronts) or 136 mph on Y rated (rears) for long periods of time you may want to increase the pressure a pound or two.




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Just finished mounting new tires.
Wanted to make the tire size issues perfectly clear.

Put 245/40X20 Bridgestone Potenza S001 on the front.
Put 275/35X20 Bridgestone Potenza S001 on the rear.

Tire diameter and sidewall dimensions stay nearly the same as original equipment tires but width increases by slightly more than 1 inch front and rear.
Factory wheels, no spacers.

Absolutely no issues. Everything clears over rough roads and tight turns.
Probably still about 1/4 inch clearance in the tightest spots.

Although putting narrow tires on wide rims can have safety issues. Placing slightly wider tires on narrow rims the only real issue can be uneven tire wear. That can be mitigated with proper monitoring of tire pressure.

The car looks better.
In my opinion the original tires didn’t match the aggressive look of the car.

These tires give you slightly more protection from curbs for the wheels and fill the fender wells just a bit better.

The car feels just a tiny bit heavier with steering, and understeer disappears.

I feel it’s a improvement in looks and handling.