I have researched this subject well because I was planing what Im going to get for my hatch. I looked at the bonus's of the exhausts (not just apexi, all exhausts) the look, the ground clearence, the price, what its made out of, the design, and I even looked up sound and video clips of all the exhausts to see what was best. After everything I did it came down to Apex'i N1, and Greddy EVO, so I chose N1. The N1 is a little bit louder then the WS but its not a loud ricy sound, its a good clear sound thats not raspy at all.