Ill bite. Im running steeda sports on my 02 gt but I dont drive it much. The one thing I can say about them is that the ride is harsher then stock and, I dont think its necessarily due to the springs, but the car feels pretty planted even when I practice launching. If youre not looking to drag the car you can run pretty much any lowering springs since you dont need drag specific springs. More importantly you will need new better shocks and struts. They will have a bigger impact on handling than springs will.