It's time for something different for my Z and I'm selling my set of Nismo springs. Original owner put approx 25k miles on them and I put an additional 15k miles. They have cosmetic scuffs from install/removal but they are fully functional and should last a long time!
I wrote a review of these very springs here :
Nismo Springs Review
Options for sale
1. Springs only $150 + shipping (I think I paid $40 in shipping)
2. Springs with fronts mounted in sport shocks for EASY installation (rear springs only) - $250 + shipping
3. Springs with fronts mounted in sport shocks + rear shocks - $300 + shipping.