Hey,
It would appear that the 318is I have just bought came with one of these kits.... BUT its kind of odd how its put in. Correct me if I am wrong, but the plate is supposed to bolt down....correct? Mine just has the plate just chilling out and the only thing holding the coils in place are the coils themselves. Is there a spacer that goes underneath the plate or something? Also, what length bolts are needed to mount the coils? Mine has two different sizes... Two are way long and actually lift the plate off the motor by contacting the valve cover.
I am trying to figure out my bad idle and I am thinking that this probably has something to do with it.