i've heard that the kamikaze is pretty useless on NA motors but is good for sc motors.

when they say 4-5 more hp than dc, it could be true, but it could mean, for example, the kamikaze maybe makes 4-5 more at 3k rpm but then dc sports could make more throughout the rest of the powerband (they just don't tell you that). But either way they're still making more at 3k so they can say they make more power. i don't know for sure, i'm just saying that, cause a lot of companies say they make more than this and that, very tricky