Springs are soft. Don't pay that much for that stuff, this is what I got and couldn't be happier:

http://www.amazon.com/dp/B006K8TD3G/..._M2T1_ST1_dp_1

Only thing is, I could'nt figure out how the top hats worked so I set them aside and let the springs go straight up against the stock rubber upper mounts. Can't see any scratches from the spring moving around so it seems to work good.