Anything is possible with the right amount of money, time, and tools. This will not be a plug and play type of thing. You will need some extinsice amount of fabrication work. I dont even think the height of the fenders is the same. So you would have to channel the fenders to fit the b14 body.
im sorry but that would look terrible!!!!!!!!!!!!!!!!!! the lines wouldnt flow at all. the b15 hood is alittle chunkyer/beefier in looks compaired to the b14. the fenders wouldnt line up well with the a pillar. you would need to put a bead in it (like nostro said) and rol it/ cut it to line up at the bottom..............bottom line way to much work, and it will end up looking very bad in my opinion