Carbon fiber A-pillar fairings are designed to provide a smooth transition from the front 
windshield frame to the frontal facing rain gutter.  Significantly reducing aerodynamic 
drag at higher speeds because the rain gutter (without fairings) creates a major point of 
air flow turbulence.  These have been proven to increase top speeds by 5-6 MPH and 
were historically used by 935's as well as the Ruf CTR and BTR.  More current 
applications include club racers, enthusiasts, and those who appreciate every advantage.