Extended top hats do NOT lower the car AT ALL. They simply allow for more travel in the shaft of your shocks for when you are significantly low. You shouldn't need extended top hats with Tein lowering springs. Save your money for something else.Just red over this and was looking for some tops hats. Im lowering on tein springs which is like 2in all around. The shocks are all fine and new. I was debating getting extended top hats for the front and rear because i hear it helps out with the roads and will lower the car a bit more.