I am new to modding cars. I just bought my wife her own car so my 2006 Mustang V6 pony package is my "toy" now to play with. I am looking at getting some 20's and also lowering it to start. One place quoted me $500 out the door lowering. Another place quoted me $200 out the door. The springs at the $200 is "I-Box" (I think). I wanted to lower it about 1.5" but only want to spend $500 or less (including anything inside that might need to be changed). Any ideas?!?!