I have a 275/30/19 PS2, it is a little stretched on the 10.5, but still looks very good. Next time i may go to a 285/30, but it is just a hair taller sidewall,so it will make it look slightly bigger in front if you go with a 345/25/20 rear. So I definately wouldnt go with a 295, if you run the 345/25/20.
If you opt for a 285, your choice is Pirelli Rosso or Nitto invo. And then you can use their 345/25/20.
If you opt to use the PS2 , your only choice for rear is a 335/30/30, which is a little too tall, so then you could use a 275or a 295 front.
I always go to tirerack.com, see what the height is of the factory wheels, then you can look at the 19/20" options to get the correct sizing you want.
Heres my set up, 19x10.5 and 20x13 Iforged, with 275/30/19 and 335/30/20 PS2's. Next I may go back to Pirelli, since I want a little smaller sidewall in rear , I had to raise rear up a hair from where I had it sitting before to fit the PS2's, but im torn because the PS2 is a awesome street tire.
You must be registered for see images attach