superlows will make you bottom out everywhere.eg.front spoiler,exhaust system etc. and if you have bigger than factory rims,you will have to roll your guards.
you might be able to use superlows in the rear without TOO much trouble, but i cant speak from experience.
i'd look for springs that will give you about a 25-40mm drop only.
hey andy,have u got the castor/camber top adj on the front?