The car is a 99 GT with a Cobra IRS under it, the car has been lowered about 2 inches with Steeda springs.



I'm looking to replace the rear 10th anny wheels with 17x10 anny wheels and a larger size tire, but i'm not sure how big I should go on the tire size, I use the car on vacations and such and don't want to have rubbing issues.(currently 17x9 with 275X40 tires)
Any ideas?

These are the wheels

17X10 Gunmetal 10th Anniversary SVE Cobra Style Replica Wheel 20mm