What does a bumpsteer kit do?
Nothing, unless your car is about 2 inches off the road...
Are you planning on lowering? What spindles? What springs?
Everything has to work together...
Well i am not sure what will happen in the future so i cant take getting 2inches off the ground out of the equation.
As for lowering, i have only about 5 inches or less of ground clearance in the front. I have stock spindles and springs but in the maximum motorsports kit i want, it comes with coilovers. http://www.maximummotorsports.com/store/index.php?main_page=product_info&cPath=1_68&products_id=1031
As suggested in the other thread, you should take some time and call MM if you are serious about buying their parts. Short of that, they have a TON of tech on their own site as well. Maybe read some of it?
http://www.maximummotorsports.com/store/index.php?main_page=index&cPath=3_13