Like title states. $250 obo
Google the advantages of the springs. I believe it lowers the car a bit, with much improved handling.
Hard to find, grab them now. Works for all Z31's couple them with newer adjustable shocks and feel the awesomeness.
Had them on the car for a little bit but went with a different setup. Stiffness was perfectly fine for DD. The ride was only a little stiffer than the blown stock setup, and the car handles alot better.
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