I know this is and odd request but I'm curious about what sort of physical difference there are between these two parts. Pictures of them side by side with their mounting surface clearly displayed would be great. I've searched with google and found some on FRSport that only served to make me want more pix. I'm posting this in the lounge because I don't know how technical you might consider the picture request.

Another question I have is whether or not these to parts would "read" the same, ie if the S13 SR iacv was connected to a s13 KAde ECU. I imagine the connector plugs would be different...i envision those needing to be changed if you were to use one for the different engine.

I know its an odd/borderline stupid question...but i have a good reason for asking.

Thanks,