The Vogtlands have noticably less body roll and much less nose dive under braking. I did notice that the the coils are made from thicker wire than the stock springs. The rear springs looked exactly like my one coil cut stock springs except the wire was thicker and the fronts were a little shorter than my one coil cut springs again the wire is thicker. The car sits about the same as with the cut coils but the rear is about 1/4 inch higher. I have to assume they are stiffer but they actually feel smoother or less harsh over the bumps and seem really well matched with the KYB shocks. My son rode in the car tonight and really liked the ride. He could tell the difference.