Car is a 2011 g37xS sedan

Looking to get the monoblock BLQs one piece. Need help on what offset and tire size to go with. I want 20x10s all around but don't know what offsets to go with because I want them as concave as possible. The car doesn't have the BBK. I don't want to use spacers. The car will be lowered later on and the wheels won't go on until it is. please help!!!!

Tire size I had in mind was 255/30/20. Saw another g sedan with 20x10s +35 offset and that tire size but it wasn't AWD so not sure to follow that.

 

Welcome to the site, go ahead and give this thread a good read there's some fitments similar to what you're wanting
https://www.myg37.com/forums/brakes-...post-here.html

 

very very quick and rough estimate would be around 35-25 depending on how low you go

i m more comfortable with 19's and 20's are a little out of my realm especially with tire sizes.