Hi from Australia. I've recently come across a few of the STi/Prodrive/Bilstein suspension setups and am very interested in them, however I'm totally lost with it all... I've been trying to read up heaps but most of what I'm finding is through American forums and is only making me confused! They seemed to have some upgrade options in their market which included whole sets or just springs on JDM v5 STi struts, so I can't figure out how valid that info is... I'm hoping someone on here knows about it all and has all the info to lay it all out clearly for me... So I've seen variants of the silver struts with the "STi Prodrive Bilstein" labels on them; blue springs, at least one type of blue set with Eibach stamps on them; silver springs, no idea who makes them; and also red springs, one of which set I've seen with the P1 stamp on them. I've also heard of WR, GT and P1 packages. - I've just seen a "Eibach Pro-kit" spring upgrade too, they were red springs but I also saw Eibach pro springs referred to as being black... On this site, I saw a set of STi Prodrive Bilstein struts with Eibach blue springs that is supposedly what came out on the UK 22B, and had also mentioned the P1 model. - is the suspension that was fitted to the UK sold 22Bs different to what was fitted to the JDM 22Bs? What did the JDM 22B come with if so, red struts with black springs? Were they even inverted type struts? - What suspension did the UK P1 come with and where does it fit in, is it just a spring change or struts as well? Other info I read suggested that there were separate 97-98 and 99-00 versions of the "STi Prodrive Bilstein" suspension with different specs, although were all inverted style struts. Can someone please lay out for me (if the info is available) what variants/combinations of all of these STi/Prodrive/Bilstein suspension setups there were, whether or not they're inverted struts, their dampening stiffnesses, their spring rates and whether or not the springs are progressive? If straight numbers aren't out there, then at least order them from softest to stiffest, but also including JDM MY99 v5 STi & JDM MY00 v6 STi suspensions in there for comparison as a known reference. Any height ride differences are given for these setups compared to the JDM v5/v6 STI for a sedan would also be appreciated... - I have a MY93 Liberty GX Sedan with JDM v5 STi suspension and a MY91 Liberty RS Sedan with JDM v6 STi suspension for my reference. I believe the struts are the same but the springs are slightly stiffer for the v6 than the v5... Thank you very much!