Can anyone help identify who makes the blue lowering springs in the picture?

I know its for a 240z, but don"t know who makes them or how much they lower.

Thanks!

Saro,

Identifying the manufacture is next to impossible without some sort of marking. However, what may be benefitial for you to know is, the wire diameter, number of coils, and the free length of the springs. With this information you can find like springs from multiple sources. Hope this helps you move forward a bit.

Tom

Thanks for helping out. My next step was to measure the free length of the springs and compare them to stock. I don't there are many companies who manufacture springs for 240z's, so who usually produces them in Blue? Suspension Techniques?