I finally bought some SPL arms for the rear subframe.
Found a great deal from a great seller: @I6_Power here. So thank you!
I got the RUCA, Toe and Traction arms.
Overview of all:
Ruca:
Toe:
Traction:
I had Circuit sports tension rods before, but I never installed them because they seemed pretty weak and I didn't like the overall quality. I chose SPL due to their great reputation, passion for their products, and they just look incredible and I expect them to perform the same.
Hopefully I will get to install and compare over the weekend.