Here's another pic from the DE Ruf site. From what I read before, these greatly help reduce wind noise. I don't doubt the higher mph at high speeds when every little aerodynamic advantage helps. Listed for 199.00US on the Ruf site.

http://www.rufautocentre.com/parts/pdf/964.pdf

 

Hi Phil,
welcome aboard, black with black 3.6 from the ace

 

That's a HOT 965!!