if you wanna go with springs, then get kyb agx shocks, with a motivational engineering rear shock mount, koni bump stops, and hyperco springs( 1.5' drop i believe)
if you wanna go w/ a lower drop, KYB AGX's, with ground control coilovers, also get the motivational engineering rear shock mounts, and the koni bumpstops with them, they will make the drop safer (and you can drop the GC CO up to 3'), of coarse teins and B&G are also great set ups
good luck, def read up on the sticky for the sentra suspension set up, and def. check out the good/bad coilover list. you will be amazed how many are crappy out there both stickies are in the brake and suspension part of NF.com
yes the ground controls can be droped to 3 inches. but on normal struts you wil run into the same problem as if you had sport lines. on AGX's you cant drop the ground controls more the 1.5. if you get the shortend konis from motivational or on sr20forum then you gain 2 inches more of strut travel and can lower the car even more. go to www.sr20forum.com and search for "shortend koni" or "koni inserts" it should help you out.
I went ahead and bought the agx,,, with b14 rear and b13 front
that leaves me to get ground control (i know there are others but i wanted this one).. my only problem is that with the agx combo of b14/b13,, with the ground control, should i get the same setup? or b14 all around..
I own a b14, going to put on the mounts (if a GB starts), and koni bumpstops (b14)