The 2015 STi lip looks like it'll fit perfectly but not pretty sure!

 

Might be a little too late but I held the front lip to my 2015 wrx up to my 2014 tc and it lines up almost perfectly. I say almost because the lip i bought cannot be baked but fits perfectly at the front and flows with the body lines the sides go in a little too much but if you buy the bayson R lip (which can be baked) im almost certain that it will line up with the sides might have a small gap toward the ends of the lip but not too much. I might buy it and try it out and if it doesnt work ill have an extra lip lol

 

Let me know if it ends up fitting lol