One of the first things I do when I start messing with an S chassis is to get 6" springs for the coilovers (especially in the front) to get the height to where I want it. In the past, I have put Swifts on all my cars and have been very happy with them. However I have recently become aware that Tanabe also offers a "coilover upgrade" spring, the PRO210 that are advertised as being completely linear. They have a ton of lengths as small as 4.5" and rates from 4kg to 16kg, which isn't a huge range or anything but I've never ran 16kg springs, even on the track. They are priced really well ~$60 per spring, compared to Swift's ~$90 - which, to be honest, is what made me look into them more.
To me, the quality of the springs on my coilovers is very important - whether it's the springs on the PBMs on my S13 or on the Aragostas on my Civic, having an actually linear spring makes a huge difference. I have high hopes considering the quality of Tanabe products that I have had experience with in the past, but I was wondering - has anybody had any experience with these?
Tanabe USA Inc. - PRO210 Max Custom Springs