Hi, I have a set of NC Circuit Sport Coilovers I was using, but have since sold my NC Miata. They were on the car for a total of 5 months, and about 8k miles on them.
They are 10kg front, 6kg rear spring rates, 12 way adjustable.
I'm located in Socal (Irvine) - selling for $500.00
chaforjohn (at) gmail.com