My last set of Weitecs were 3 years old and looked like a fifth of that, they we're like new and that is with zero waxing. In contrast, my APs are two years old and look horrific. I agree with the sentiment of Willie's post and it is absolutely applicable to most sub £500 coilovers, it is not applicable to the Weitecs. The primary difference between the Weitecs and other lower priced coilovers is that Weitecs have galvanised struts, most if not all of the others are not galvanised and are merely Zinc plated. They will never be comparable to the KWs over a long lifetime but they will definitely last a good 5+ years and still look reasonable at the end of it.