SoulFunction makes the same braces and look amazing. They also make other braces for the 370z as well as other cars. You can see my quick and easy install for the 4 point brace
https://www.youtube.com/watch?v=Ld26f9s0rRw&t=2s and I'll be installing the 6 point mid brace soon with a video to follow. The rivet install comes with the required tool, you can use a socket with wrench (hold the tool in place) but will take you time to bolt the bolt/tool down that a impact gun will do faster with less man strength.