i've always wanted to buy a 99 GSX.
if i owned one, i would do the following:
DUMP IT
paint it black (if it wasn't already)
tint all the windows in a nice "limo black"
put a set of black 5Zigen FN01R-C wheels on it
smoke the tail-lights as dark as i could legally get away with
black projector headlights (might as well smoke them too)
a nice front mount intercooler (painted in a charcoal color, not black. i want it SOMEWHAT visible)
1st gen 4g63 swap (i don't mind walking, but i don't like it when cranks do it)
i've always liked the idea of a dumped gsx in ALL BLACK. not murdered out (flat black) but a nice proper shade of black.
might be a tad "ricer" in approach, but i'd love to see that.