mmm-five said:
Does it have to be Eventuri? How about a Gruppe-M?
https://z4-forum.com/forum/viewtopic.php?t=148595
Tempted by Gruppe M, but I think the science behind Eventuri is swaying me. I had a Gruppe M previously and it through up an EML... might not of been related but it did make me remove and sell it.