I had the experience with both coil overs and springs in my car. I had H&R coilovers but took em out and gave em to a friend cuz I was never adjusting the height of my ride (where as my buddy does) so I put my H&R springs back in. The diff ? Ummm honestly, not the biggest difference in the world but yea the coilovers were stiffer. If ur gonna get coilovers, im tellin ya get AXAS coilovers - they're dope man and not that expensive (I get em here in Vancouver for $1200 canadian installed).