coil overs in the s30 involves modifying the strut housing to accept the threaded sleaves and percheshttp://forums.nicoclub.com/zerothread?id=237090I got mine fomr Ground controlazc sells a kit but their kit involves cutting the tube form the knuckle and welkding in their threaded sleve, the beneift to their kit is the ride height is adjustable without effecting preloadhttp://
www.arizonazcar.com/coil.htmlbeta motorsports also sells a kitbeta motorsports sells a complete kit with struts already modified and wth the "biscuit" type camper plate which makes their system a complete bol in
msa also sells a complete kit that uses the bolt in biscuit type plates but you still have to cut off the stock spring pearch and weld on the stop collar for the threaded sleevehttp://
www.thezstore.com/page/...-4123
modern motorsports sells a basic kit but does not include camber plateshttp://www.modern-motorsports....id=12
techno toy tuning sells the GC coil over setup, but they also sell their own camber plates which are cheaper than the GC camber plats, neither includes the camber plates wiht the coil overshttp://technotoytuning.com/productdetail.php?p=582
and you can get GC's kit direct, the advantage beign that they offer gret technical support to help you choose the right spring rates for your applications, they can also sell you strruts and other parts as needed even helpign you get the correct strut gland nut for an exotic insert selection such as the mr2 struts I run in my sectioned housings (see the strutsectioning 101 link at the top)
doesn't appear that you looked very hard