How low can you go v. 2.1 - S/Z-chassis only

[hitman]

plus you wont see the xd9 on many hondas and random cars too. i saw a tacoma with fn's.

caster pulls your wheel forward (more of it). if your doing this just to not hit the wiring harness, you stupid. just relocate it. all you have to do is pull the fender and ziptie it up higher.
adding caster will also lower your car, and change the rest of your alignment, it will add - camber, and toe out (i beleive for the toe, couuld be wrong).
if your car just parks around, and you drive it to the mall and back it doesnt even matter, if you drive it you might want an alignment after you add caster.
you can run between like 6 and 11 degrees of caster. when i was really low i had 11 on one side lol. try like 8-9, then youll need to hammer the front of your fender area. id recomend doing this when your fender is already off for the wiring, just to be safe