Installed on 4/26/14. Springs should sit a little lower within a week or so, as they break-in properly.

Ark Gt-S lowering springs installed.

Specs:
Drop / Rate: Front 1.40" Rear 1.20"
Spring Rate:
Front: 9.5 kg/mm
Rear: 10.7 kg/mm

SPC rear camber kit:
Rear Adjustment range: Camber ±4.00 degree Toe ±3.00 degree