Im just going off what i was told. Don't shoot, I'm just a messenger lol.That man should stick to building hondas with chinese parts, not selling mission-critical stuff for the N54.
Who's to say the metallurgy is up to par? Vargas had the same issue with spline lock they claimed it bites into the crank and then they slip, customer removes it and finds the teeth are flat.
I'll run a stock overtorqued crank hub before I touch a shitfire race product. On my first built motor survived 34.5k miles of 650whp and up before the head finally lifted. never an issue with stock hub + overtorque and I was not gentle on that motor.
I ended up getting a v2 crank hub from vtt during black Friday, and it appears the teeth are still good on it. But on removal, i didn't need a puller as they stated. So who knows if it actually bit into the crank. I haven't looked at it. Just tossed it to the side and let it collect dust.