The Specs
Just like the OEM M Performance caps, the Karbonius caps are made using a negative mold of the OEM mirror caps. It produces a 100% carbon fiber cap with perfect weave alignment.
Karbonius offers the mirror caps in standard M performance style 2x2 weave or you can opt to match the OEM carbon roof 1x1 weave pattern.
The 4x brackets on the inner shell are 3D printed and glued to align with your OEM mirror clips.
Installation Notes
Removing the OEM caps is probably the most nerve racking part of this. They are made from ABS plastics. It likes heat. Make sure you work in a heated environment.
Apply gentle pressure at the edges all around.
Pull. Pull harder.

Karbonius Composites is a leading manufacture of BMW M street & motorsport carbon products.
They have been on the rise since mid 2010s and establishing themselves as a leading manufacturer in the industry.
Quality, and most importantly customer service have set them apart.