Originally posted by h22avid
^A good spring should not settle after install... any reputable mfg which Tein certainly is should preset their springs. I have Progress Auto springs and they are preset from the factory... what you get is what you got... no settling.
Here's a tech FAQ from Progress Auto's site:
Q8 Will my springs "settle in" (wear in or drop a little more) after a while?
A8 No. Anybody that tells you "their brand" of springs need to "settle in" is really saying one of two things: 1) Their springs aren’t pre-set (sometimes called blocking or pre-stressing), which, while saving the manufacturer money, gives you a less durable product and inconsistent ride height, or 2) They just want to get you off the phone. Where you might see some settling is on NEW vehicles. This happens because the rubber suspension bushings tend to settle after a period of time, NOT because the springs have settled.
My Neuspeed springs did not settle after I installed them either, but I have heard multiple stories from people about different springs settling, etc. Thanks for that post though. Makes me feel better about my springs.