in a nutshell .......yes.
outside a nutshell.............
Since lowering a car changes the spring rate and height of the car, lowering springs are categorised according to the spring rate, which is the amount of force or load it takes to compress a spring a certain distance. The higher the spring rate, the stiffer the spring is.
The two main types of lowering springs are the progressive rate springs and the linear rate springs. With progressive rate springs, the top and bottom coils have a bigger gap than the coils in the middle of the spring. The spring rate varies depending on the distance travelled, with the spring getting stiffer the more it is used, thus creating a comfortable ride. Progressive rate springs cost a lot more than linear rate springs; they are ideal for drivers who want buckets of aesthetic appeal and a smoother ride. Linear, standard, or specific rate springs have coils that are evenly spaced apart. There is no change to the spring rate no matter the distance one travels, thus the ride can get bumpy. Linear rate springs are less expensive than the progressive rate ones, and are for cars whose drivers prefer a better-quality lowering of the car and performance over looks.
going off topic chaps There's another thread on newbies...................going there,.