Originally Posted by Wharbone
Coilovers let you adjust your ride height with a threaded bottom.
There are 2 types of coilovers.
1. Sleeves - These go on a shock. (good brands - Ground Control, Skunk2)
2. Full - These have built in shocks (good brands - Tein, JIC)
Actually there is only one type of coil over... the ones your car came from the factory with
, everything else are threaded bodies or threaded sleeves to be technical (its a pet peeve of mine... sorry
)
It is true that threaded sleves or threaded bodied shocks ride stiff than lowering springs as lowering springs a generally progresive rate springs where threaded have linear rate springs.
That Tokico kit looks fine for street use and occasnial auto-x use, if you are going to auto-x or hpde more seriously you might look for something else, or by these now and go ground control sleves later.