i would say it's a virtual certainty your subframe is pretty well tweaked. I have yet to see a nytro with a perfect subframe. If your a arms are bent the subframe is definitely bent.
You may be able to give it the pry bar treatment and keep riding it for a while. My 09 XTX bends over time and the spindles stand up straighter and the shocks get closer to the upper a arm.
My 08 one whole side is pushed back like yours and the entire frame is twisted up bad. No way to fix that.