Yesterday I published a nice Subaru logo wallpaper for the iPhone (that I'm currently using on my iPhone 4). I now have a couple other simple Subaru wallpapers for you. Just generic STi and WRX wallpapers. I think they're quite clean and simple (like the other one I published).
As with the other one, you can either save the image from here or click on it and save the one that pops up.
As with the other one, if you would like to see either one of these in a specific resolution or for a specific device, feel free to comment and let me know what you want and I'll see what I can do.