This is for the GTZers out there. Have any of you put Eibach pro-kits on? Will they lower the car? If so how much (if any)? Since they are a general design produced for the 99 - 03 V6s (6G72) and not specific to the GTZ and the GTZ is already about 0.5" lower than the normal V6ers (ES etc). Mines a 03.