89 is right, even though he doesn't always communicate clearly.
Stick with what IS WELL KNOWN TO WORK.
Eibach sells 10x the amount of springs as the competition. Unless you're going full coilover, then you CAN NOT do better than the Eibachs.
Am I saying this just because I have hooked up DOZENS of my NICO brothers with Eibachs for $180 shipped? No. (e-me off-board for info)
It's because I have been down the road of buying cheap mods (owned 2 "riced" imports, then I grew up) and then being disappointed/angry because of the crap quality.