Modeled after the original 90's E36 4-POL MAF connector boot (later revision had an accordion tube restyle). 3D printed in Silicone 40A on a FormLabs SLA printer.
Replaces OEM Part Number: 12521713508
Available with 90-degree elbow and a custom straight version.
Please note: Silicone 40A is shockingly strong and very similar to the original style rubber protection caps used by BMW. They will tear, just the OEM do, if you try to stretch beyond a logical limit or cut them.