Your car will sit low in the back with just a Steeda spring…and the color is irrelevant since you can’t see the spring unless you’re looking for it and after a few drives in the rain they’ll be black anyway.
It's more like I don't want a dealer spotting the obvious aftermarket attachment due to its bright blue color when something else inevitably fails on this car and needs replacement, just in case they want to argue that its related. Secondary is the fact that I personally don't want to be able to see a blue spring, it would be tacky, which I can easily see the black factory springs as it is from beside the vehicle and Steeda only lowers about an inch. And speaking of an inch, I think the rear sits up at least an inch higher, if not more, in the back so I don't see how putting springs on just the back would make it look like its sitting low, I feel like it would appear more leveled out. I don't tend to have a packed vehicle, and the Steeda's are stiffer anyways so I don't think it would matter much. But maybe I'll do the front too, although I'm very curious about doing just the back.
On a side note.. I wonder if anybody knows the difference in ride height between the PIU and ST and if the PIU springs sit the car a tad lower or not. If so, I might be more interested in trying to acquire PIU springs if I can even find them anywhere, since I'm already planning on swapping out rear shocks with PIUs and debating on swapping out front struts too at same time with PIUs, so I'm debating adding steeda springs at same time with new shocks and struts, or if I should just keep the factory springs or acquire PIU springs..