I was told in a different topic that if i were to put the S4 suspension on my 1.8T that it would be a good idea to also get a 19mm rear sway bar to fix the oversteer. I was checkin out things online and notice a lot of different types/kinds/sizes of sway bars for the front and rear. I know i have a stock sway bar in the front lower(i have removed it once before) and i don't think i have a rear one though. My questions is what is the difference between the sizes of sway bars compared to fronts and rears and adjustable ones? Is it ok to get a rear sway bar and leave the stock one in front?