I've had these installed in my old 300ZX for about a month before I sold the car. I kept the seats in case I ever bought a car that I could put them in, but decided to sell them since they won't work in my NSX. They are Cobra Milano AL seats, black leather with gray novasuede centers. The seats are snug and very supportive. They also come with brackets for the Z, but aren't the best quality. Other brackets such as Bride may also fit these seats, but I haven't measured the spacing for the bottom mounts.
The seats weigh about 29 lbs each. Kevlar backs and aluminum trim.
They retail for US$1600 each + cost of the brackets. I'm selling them for $1500CDN for the pair, less than half the price I paid for them. I am located in Vancouver, BC. I would prefer a local buyer, as I am not willing to ship these.