Hi i have an 88 325 super ETA, now everyone seems to say that the pistons in the super ETA are the same as the i, along with the head. I was about todo the popular thing, and get an i cam, and i valve springs, and i ecu, and just stick it in there, until Peter 89325ix on BEN showed me some websites that say there not the same,
http://home.netpower.no/pberg/Mahle_m20.html
and...
http://www.schwarzone.de/e30/fotost/.../m20seite5.htm
supposedly the pic of the super eta is at the bottom, PS is HP.
I don't know what to believe, and would love to find someone who has done this mod and had success, thanks.