Send a message to papii fly. He runs some aggressive setups and low suspension. I think the +25 is gonna be pretty close to flush.
Stock offsets on the LX is now +48, not +45. So your +25 is more like a +28 if compared to an 8th fitment.
You will need coilovers, springs alone won't cut it if you really want that low/flush/stanced look.
Are you looking to stay away from fender work? Rubbing an issue? Camber? Low? I don't know if there are any rear camber arms out yet for the 2012 and Im unsure if the 8ths would fit.
There is a guy on 8th with XXR 518 18x8.5 +25 : tire 225/40 and they work. Some rubbing though.