This has probly been answered already, but I'm looking for a specific answer. With the Tein S-Tech Springs, what kind of stock strut life can I expect? The roads around here are usually smooth with the occasional bumps/speed bumps. My car is a 2002 P5 with close to 21k miles on it. I want to get the most miles out of the stock struts and I dont want to use any other springs but Tein's, I want to keep the Tein drop/feel/ride. Also, when I do decide to get new struts, what is a good brand that isnt too harsh on the pocket? Thanks in advance.