Eibach Drag launch kit

[Notchbck88]

does anyone have this eibach drag launch kit set up in their mustang?
when i bought my car it came with a brand new drag launch kit but i want to know how much this kit will effect my ride quality and will it lower my car?
thanks

 

[mob]

not sure on ride quality, i think its ok for street, alittle stiff i think, i heard it highers your ride alittle, i was thinking of getting it if i dont get coil overs, i think ive only seen one car with them, it looks stock pretty much