The rear motor fan shroud is a known weak spot on 1.5 Roadsters. The OEM shroud is made from a brittle plastic that is prone to cracking around its mounting points. This replacement shroud made from carbon fiber is our solution to this issue. Relative to the original, it is virtually indestructible. We parked a Roadster on a pair of them with no visible deformation.
An original shroud with broken corners: