i've seen the thread come up several times, and i have heard either works great. my real question is; i'm getting some 18" rs4 reps, and i'm wanting to lower the car to make it more aggressive looking. what i would like to know is, how low do i have to go to get the tires to just fit in the wheel wells? i've seen the spring kits drop 1.7in, is that enough? or do i have to go with coil overs to get the drop i'm looking for. i dont want them tucked in the wheel well, just even with it. if that makes sense. any ideas?