well... i heard that tein s tech springs are pretty good for both, but i dunno?? I am planning on getting 16' wheels. obviously the car sits low as it is. I just want to drop it enough to close a little wheel gap that might be left over with the 16's on it. I'll prolly throw a descent series tire on em as well to help with the gap aswell.if anyone has 16's, lemme know what a good set up will be!!
here is is a link to tech info for most springs for xB's i chose a progressive rate spring over the others for 2 reasons its softer ride at first for commuting and putting around town then when ya drive harder the rate increases drastically. i bought Eibach pro kit 1.5 fr 1.6 rr there sport kit is 2.0 for both
the spring rate of stock is 148 fr / 160 r.
the Eibach starts lower then gets stiffer as you drive more aggresivly or load more in the box 120-180 fr / 69-211 rr
and i found both Eibach kits for 208.00 shipped