FYI, These are currently
$397.99 plus shipping from
VR Speed Factory (vr-speed.com)
"aFe 06-08 BMW Z4 M 3.2L Pro 5 R Oiled Stage 1 Intake
part# 54-11521
$397.99"
I am not affiliated with any vendor or reseller. But I CAN use google to save fifty bucks
.