[HKS PWR]

One pair of Z65-203-012: 65mm inner diameter, 203mm in length with a spring rate of 12kg/mm (approx. 2.5" inner diameter, 8" in length with a spring rate of 650lb/in). Used during a coilover mockup and a test-and-tune session at the track.

and the other pair is Z65-203-010: 65mm inner diameter, 203mm in length with a spring rate of 10kg/mm (approx. 2.5" inner diameter, 8" in length with a spring rate of 550lb/in). This set was installed on a set of coilovers for a display and were never driven on.

Price: $300

Pictures of springs are on my Craigslist ad:
SWIFT Coilover Springs (http://vancouver.craigslist.ca/van/pts/4922230376.html)

[HKS PWR]

Sold the pair of 10kg/mm springs.
The pair of 12kg springs are still available for $150.00

[HKS PWR]

12KG springs still available