:A while back ago there was some discussion as to why the Tein Flex is a better system then the Tein HAs. So I took some pictures to illustrate my point. :First of all my point is that the Tein Flex is much better system than the HAs because you don't have to preload the spring if you don't want to. Also because the entire shaft is threaded you can play quite a bit with the weight balance, shock travel, and a quite a few other factors. :I am installing these babies on my car along with an EDFC. : : : :The last pic shows something special for Nixit since he likes Carbon Fiber so much. It was made for Supra I am considering making all my intercooler in a similar method. :For those who don't know I have been working a shop part time and we have open a few accounts one of them with Tein so if anyone is interested in product let me know. I am sure I can get that shop to help out 300ZX community.