I got new wheels that are 19x9.5 and 19x8.5 with an offset of 15. I'm also drop on Eibach Pro-Kit springs.
What are the biggest tires I can fit on the wheels because I want it to be somewhat comfortable and I don't like the stretched tire look?
My fenders are rolled and flared

 

245 fronts and the rear maybe 275

 

+1 245/35/19 and 275/30/19 recommended sizes

 

I have exact wheels.

I used 245 35 19 Front
and 285 30 19 Rear

I have no No problems for 2 years. It is not very comfortable though!.