I like the look of the tips out the back, I also suspect it's quieter to the driver. On my current car when I had the wastegate dump angled up it was decently loud but I noticed when I put a different one on with the pipe facing the ground the noise sort of resonates a lot more and makes more noise / smell. The smell is really bad man. Not the same car or application but the idea is the same.
On something primarily for racing then dumps are pretty cool.