I just did a 03 irs swap on my 99 GT. The car had Bilstein shocks struts and lowering springs and now the ass is to high with the stock cobra springs. From the looks of it the rear needs to come down about 1.5 inches. What do you terminator guys use for lowering springs? Also will cobra front springs work on the car as well? The differences I can think of would be the weight of the heads and blower that would cause and issue with the ride quality. The only reason is that I would like to have 4 of the same type of springs on there. Thanks....I realize the pic is crappy because of the camera phone and from the pic it looks fine but the driveway isn't flat and is giving the illusion.