id like to put some thicker tires on the rear wheels. my tires at 245/40 r19

would 255/35 r19 be the best choice ? can i go any wider and lower than that ?

the car suspension is stock. i dont mind adding spacers if needed.

what do you guys recommend ?

 

Just puttin some tires on the rotors or do we have some wheels and wheel sizes you'd like to share to help your further?