OK first I ahve a quick question on the tein springs in a magazine it says that they are 1.6 front and 0.9 in the back for the 4 cyl. Everyone is saying that it's 1.8 front and 1.2 back. Who's correct? Another question is, Right now I ahve a heavy system in the back. If I were to install TEIN spring in the back would the sag as much as the factory or a lot less? I want to have the front a bit lower than the back. Please get back to me asap. thx PETE