Update: I am adding HKS Special edition ATTKD (Time Attack Edition) coil overs from my S13 for sale.
I am not sure on the spring rates if I had to guess they should be 8kg/6kg, they are dampening adjustable. No leaks that I have ever seen or noticed just a bit dirty, I would suggest the buyer get a nitrogen refill.
These coil overs have served good on my daily, but I got a great deal on other suspension so these have to go. I'm looking for $850 o.b.o. plus shipping and paypal fees thanks.
The last picture is how low I had my car setup and it can still go lower.
Also S13 passenger seat has been sold.