Can I use a frame cut/clip from a 2010 Impreza on a 2013 WRX STI

I have a 2013 Impreza WRX STI and it was hit in the left front and I can get a good deal on a 2010 Impreza as the downer car for the driver side frame rail and radiator support, I checked the part numbers and most of them are the same but not all, so the question is will it fit. I am only asking about the structural parts, I know the body panels are different, I already have them, I just need the frame rail, radiator support and stuff.