i am sure someone will correct me if I am wrong, but since real springs have a flat coil at both ends so that they sit in properly, that when you cut these off, you have only the end of the steel contacting the landing. This would put extra stress on the landing, possibly putting it through the top and into the engine bay.

Its just one of those things that I would keep well away from. Put up with the not so cool ride height, and save up for some proper ones.