Wheel/Spring ????
#6
for 20s I dont know, you'll need more height I believe, I'd say stock springs should help give the space needed. Why do you want to go 20s? You'd haev a better chance with 19s and keeping the s-techs.
#10
i know it fits stock.....i would get 19s but they don't make them in 19 and im gettin the 20s cheaper than 18s so im gonna go with the 20s.....they are blk/gunmetal colored with a chrome lip and don't look like something you'd put on an escalade.....