Funny you post this because I just installed these and also had trouble finding experiences of them before install.
Not sure what the guy above is talking about but I have had 0 issues with my whiteline lowering springs. I combined them with a set of BRZ saash shocks which are supposedly stiffer, and I felt almost 0 difference in my ride quality directly after installing.
Been about a month and the springs have settled, over harsh bumps is slightly more noticeable than stock but over all it’s not all that different from stock springs with stock GTS shocks, nothing close to undriveable and I daily drive it. I think people forget that even on stock suspension you still feel the bumps.
The height drop has been perfect, wouldn’t want it any lower. I have the Aero lip and a splitter so my front ride height is visually pretty low, even with the springs I don’t scrape provided I do a slight angle (unless it’s a very steep driveway).
You can also pick them up pretty cheap on sale or on Facebook.
I got my whiteline springs brand new off marketplace for $200, and then got a low km set of Brz Saash shocks + Sti springs for $250. I’m currently selling the included STI springs so (provided they sell) in total the setup will have cost me less than $300
