I foun a set of 20x9 squared ET15 Rohana wheels. Will they fit without fender work and what size tire do you recommend? I want a meaty look but if I have to stretch a little to make them work it will be worth it for the money.

my car is an '11 RWD Sedan

 

Check my setup, then go out about 2/3". I wouldn't recommend that much poke, could get them to tuck w/ 225s but IMO won't really look proper.
Here's my 9.5 +38 on 245s

 

Yeah, I was thinking about your setup and I'll be fine if the lip is flush with the fender. I'll run a slight stretch and deal with it. The deal is TOOOOOO good to pass up if I can make it work. I really wanted a 19x9 OR 9.5 square set up but the design on these should not make the wheel look too big. I'm hoping for an aggressive but clean look. He's going to let me test fit one so we shall see. I'll know this evening. I was hoping a 245 would stretch on a 9" wheel but based on yours I guess not. I was hoping for at least 245s, but I'm looking at the Tein Flex Zs too so I have to account for that

 

Yeah, the lip won't be flush w/ the fender, mine when looking straight down is about 3mm outside the fender (the wheel edge, not the tire) and your 9 +15 will be 16mm further out from my wheel edge. With some camber you can get it poking less up top so you could run wider tires, just depends how much camber you can live with.

 

I don't want to add camber. I'm hoping to let the natural camber from being lowered be enough. I drive too much to do the "Camber Gang" style. I'll test them this evening. You're always right, but I'm hoping my OCD will let it work... lol

...and I forgot to add:

Thanks (as always) for the quick and detailed replies. You're a real asset to this forum