Makrolon side window for driver side of the MX-5 NA / NB / NBFL from Plastics 4 Performance. The two-part kit consisting of main window and triangular window offers enormous weight savings compared to the original glass windows. The windows can be installed with the stiffeners shown above. Ventilation can be created using the slider shown above, since the side window is rigidly mounted and cannot be lowered using a window regulator. We ourselves use these Makrolon windows in some of our racing cars, where they impressed us with their breaking strength and their low weight. Makrolon windows scratch, for example, if the treatment is too rough during washing. So be careful here. We recommend a very fine microfiber cloth for washing Makrolon windows, which should not be pressed on too hard when washing. Never wipe dry over the window. This can lead to fine scratches that tarnish the window.
The side windows shown in the pictures are the complete version including stiffener and slider, which are not directly part of this article, but can also be selected above.
The Makrolon windows can be TÜV-approved in our house and are therefore approved for road traffic.