I was told the bottom half for thr CK series 4G9x are the same as the CD. Thus they shoud be the same. But to be sure Pls check and confirm with your mech first. Thanks!
Installed HKS twin plate (GD pro) recently. Got the ice cream sound when holding the clutch which is norm, but will there be any sound (for example, very soft "eeeee") sound when the car is idle and not holding...