I run 15mm H&R stud replacement on all four corners. Unless you go with big spacers you'll be fine - for added peace of mind i'd recommend getting stud replacement rather than bolt-ons. Also Nismo wheels have better offsets and are wider so a 10mm spacer would give you a great stance at stock height.
As for springs, anything over an inch drop won't do shock life any favors. If I ever lower it'll be done on full coil overs. Speaking of which - Vivid Racing has HKS Hipermax IV GT coil overs on sale for $1,000 right now which is a really, really good deal.
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AAM | Dynosty | Ecutek | Eibach | Hawk | H&R | Nismo | Stillen | Stoptech | Z1
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