I was on ebay and noticed that X-vipers is selling billet lowering spring caps that lower in 5/8" to 3/4"..does anyone on here have them on their car?? If so how was the install, how does it work?? I'm planning on installing KW's over the winter, if it only lowers it 3/4" it would be alright to get use to the car a little lower before I can it!!